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CROM USA Ruger PC Carbine Chassis

CROM USA Ruger PC Carbine Chassis

Picture of CROM USA Ruger PC Carbine Chassis

CROM USA Ruger PC Carbine Chassis

I can’t recall writing a post that brought me as much pleasure as this one. Visitors may or may not know this but this website is a sibling of and it’s forum. My forum right hand man and good friend Rob Sotelo aka “Robocop 1051” had an idea a while back, actually a few ideas. Rob wanted to give shooters some hardware better than anything they had seen previously and he also had ideas for hardware shooters didn’t know they needed. So being the ingenious and motivated entrepreneur he is Rob grabbed the bull by the horns, found some additional smart folks, invested cash and Condition Red Ordnance Manufacturing aka CROM USA was born. That leads to the subject of this post, the CROM USA Ruger PC Carbine Chassis.

CROM USA Ruger PC Carbine Chassis

Designed from the ground up with more features and options than the competition, CROM USA has designed and manufactured the Best Ruger PC Carbine Chassis available today. CROM USA designed their Ruger PC Chassis with 50 state compliance in mind. Combine the chassis construction with some buyer ingenuity and a knowledge of local laws is all that is need to be compliant.

This chassis was designed to be compatible with the Mossberg 500/590 stock options (some fitting may be required). The ability to add a shotgun stock was desirable for many shooters, in particular those behind the lines of restricted states. If the Mossberg options aren’t suitable shooters may utilize any of the various AR stock adapters and outfit the PC Carbine with any of the thousands of stock and pistol grip combinations (know your state/local laws before assembling).

Constructed of lightweight aircraft grade billet aluminum the CROM Ruger PCC chassis should remain compatible with whatever front end you chose (they have their own coming out soon too) CROM also maintained the ability to swap between original Glock and Ruger magazine adapter inserts.

CROM USA Ruger PC Carbine Chassis Features

  1. Finish – Cerakote “Elite” color finish. Much stronger and more durable than anodizing.
  2. Magwell – Flared “tactical” magwell for faster and easier magazine exchanges… Not big enough? The Generation 2 chassis is compatible with some of the aftermarket “competition” magwell designs.
  3. Magazine Release – Extended magazine release for the trigger finger. Drop those mags faster and with less rifle manipulation. Due to the design of the rifle, we couldn’t make it a true “ambi” without completely resigning the rifle… So we made the chassis capable of switching to a left or right handed extended release!***Bonus points! Extending the magwell created the familiar real estate so many of us have enjoyed on AR type platforms. Get that close-up grip without having to grab your stick magazine.
  4. Ergonomics – Relieved contact points that reduce weight and allow more ergonomics to the chassis. The chassis design will feel smaller than the original polymer design,and make for more comfortable shooting for smaller shooters.

***Disclaimer: Pictures shown are of the original prototype, and several cosmetic changes are in place for the new Generation 2 chassis.

This refers to the rear chassis assembly ONLY. The Ruger PC Carbine and all stocks, adapters, grips, handguards, rail risers, etc etc etc. are sold separately. 





Picture of a Copper Custom Ruger PC 9 Chassis
Picture of a Copper Custom Ruger PC 9 Chassis


The Copper Custom Ruger PC Chassis is still in the prototype stages but looks promising, It features a picatinny rail, left or right handed charging, AR-15 pistol grip and a Sig MPX stock interface.


  • Modular stock adapter
  • Ships with Sig MPX stock interface
  • QD sling points
  • Continued Picatinny sight rail
  • Made from 6061 Aluminum, hardcoat anodized
  • Compatible with all available PC9™ handguards
  • Accepts all AR15 pattern grips (one is not included)
  • User installable, no gunsmith required

Photo depicts a product prototype, final product may vary slightly.



RUGER PC 9 19115

RUGER PC 9 19115

Picture of RUGER PC 9 19115


The Ruger PC Carbine has become a favorite amongst shooters with its inexpensive ammunition, plinking and varmint management capabilities. This edition of the fan favorite features some added features on the trusted platforms. This version of the PC Carbine features a CNC-milled handguard that is Type III hard-coat anodized aluminum for maximum durability, with Magpul M-LOK accessory attachment slots on all four sides for easy mounting of M-LOK-compatible rails and accessories. Interchangeable magazine wells allow for use of common Ruger and Glock magazines. The firearms ship with SR-Series/Security-9 pistol magazine well installed and an additional magazine well accepting Glock magazines is included. Available at Palmetto State Armory and Brownells

RUGER PC 9 19115

  • CNC-milled handguard that is Type III hard-coat anodized aluminum for maximum durability, with Magpul® M-LOK® accessory attachment slots on all four sides for easy mounting of M-LOK-compatible rails and accessories.
  • Interchangeable magazine wells for use of common Ruger® and Glock® magazines. Ships with SR-Series™/Security-9® pistol magazine well installed and an additional magazine well accepting Glock® magazines is included*. Ruger American® Pistol magazine wells are available at
  • Easy takedown enables quick separation of the barrel/forend assembly from the action for ease of transportation and storage. Takedown is as simple as locking the bolt back and verifying that the rifle is unloaded, pushing a recessed lever, twisting the subassemblies and pulling them apart.
  • Dead blow action features a custom tungsten dead blow weight that shortens bolt travel and reduces felt recoil and muzzle rise. Bolt is machined from heat treated, chrome-moly steel to ensure strength, structural integrity and durability.
  • Reversible magazine release and reversible charging handle to support ambidextrous use or one-handed control manipulation while maintaining a proper firing grip*.
  • Cold hammer-forged, chrome-moly steel barrel with ultra-precise rifling provides exceptional accuracy and longevity. The heavy contour barrel provides consistent accuracy, while barrel fluting sheds unnecessary weight and allows for quick handling.
  • Threaded barrel with included thread protector allows for use of standard muzzle accessories.
  • Accurate sighting system with adjustable ghost ring rear aperture sight and non-glare, protected blade front sight.
  • Soft rubber buttpad with spacers allows the rifle to be properly sized for different shooters or varying levels of outerwear or defensive gear (three, 1/2″ spacers included).
  • Durable, glass-filled nylon synthetic buttstock features a proprietary texture for enhanced control and an integral sling mount for rapid sling attachment .
  • Light, crisp trigger pull with minimal overtravel and positive reset utilizing proven 10/22® trigger components.
  • CNC-machined from an aerospace-grade 7075-T6 aluminum billet, the receiver includes an integrated Picatinny-style rail and is Type III hard-coat anodized for maximum durability.
  • Also includes: one, SR-Series™ pistol magazine and hex wrenches for rear sight adjustment, buttpad spacer adjustment and charging handle removal.
  • MFR#: 19115
  • UPC: 736676191154
  • SKU: 5165458097
  • Caliber: 9mm
  • Stock: Black Synthetic with Aluminum Free-Float Handguard
  • Front Sight: Protected Blade
  • Rear Sight: Adjustable Ghost Ring
  • Handguard: Magpul M-Lok Compatible, Type III Hard Coat Anodized
  • Frame Material: 7075-T6 Aluminum Alloy
  • Frame Finish: Type III Hardcoat Anodized
  • Length of Pull: 12.62″-14.12″
  • Barrel Feature: Threaded, Fluted
  • Twist: 1:10″ RH
  • Grooves: 6
  • Thread Pattern: 1/2″-28
  • Barrel Length: 16.12″
  • Overall Length: 34.37″
  • Weight: 7 lbs.
  • Magazine: (1) 17 Round Ruger SR Series Security 9 Mag

* Older Glock® magazines that feature only one magazine latch slot may still be used with the PC Carbine™, but the magazine release button must remain on the left side of the rifle as shipped from the factory. The magazine release button should not be reversed when using this type of magazine as the magazine will not properly lock into the magazine well. Early versions of Glock®-brand magazines with a “U” shaped notch at the rear of the magazine feed lips will not function in the PC Carbine™

† NOTE: The receiver-mounted, Picatinny-style rail is designed to accommodate most optics and optic mounts intended for use with Picatinny/ MIL-STD 1913 rails. However, due to reduced clearance between the top of the receiver and the bottom of the optics rail, optics and optic mounts that extend more than .275″ below the top of the rail may not fit the PC Carbine™. Ensure that the optic or optic mount you intend to use does not extend more than .275″ below the top of the Picatinny-style rail when installed.



Ruger Precision Rifle Review-American Rifleman

Ruger Precision Rifle Review -

Ruger Precision Rifle

As Townsend Whelen, former U.S. Army colonel and American Rifleman contributor, was once famously quoted as saying, “Only accurate rifles are interesting.” Employing that rubric alone, the Ruger Precision Rifle is a supremely interesting firearm. And, to the company’s credit, the introduction of additional evaluation criteria such as versatility, reliability and value only make its newest bolt-action repeater all the more intriguing. Featuring sub-minute-of-angle accuracy, the dependability of a bolt gun built on the gunmaker’s proven American action, all the modularity of the über-customizable AR-15 platform, the ability to accept a multitude of magazine types and a price tag that is a literal fraction of many of the guns it will compete against on the market, Ruger’s latest foray into the long-range precision shooting field should pique the interest of a broad range of gun aficionados.

Sturm, Ruger & Co. believes that within the gun world there exists a sizeable segment of shooters who are interested in long-range precision shooting—they just have never been able to justify taking the plunge due to the typically astronomical cost of purchasing a gun designed expressly for that purpose. With an MSRP of $1,399—and a likely eventual selling price closer to $1,100 at places like Cabelas—the Precision Rifle represents Ruger’s invitation for these cost-conscious gun buyers to finally enter the world of long-range shooting.

Ruger Precision Rifle Profile-

Ruger Precision Rifle Profile – The Precision Rifle’s factory buttstock, pistol grip, fore-end and safety selector switch can all be reconfigured using compatible AR-15-style components—opening the gun up to virtually unlimited customization options.

“Competitive pricing is a part of the Ruger brand. We could have built a semi-custom gun for $4,000, but it would have been a novelty—rarely found in the real world,” said Mark Gurney, Ruger’s director of product management. “We wanted to keep the price of the Precision Rifle reasonable so that it would be available to just about anyone.”

The Precision Rifle’s upper receiver and one-piece bolt body are CNC-machined from pre-hardened 4140 chrome/molybdenum alloy steel. The lower receiver is machined in two pieces, right and left halves, from 7075-T6 hard-coat anodized aluminum. That method simplifies manufacture, allows more precise control of machining in the magazine well and makes assembly of small components easier as they can be placed in position in one half before the other half is attached.

Offered at this time in three short-action chamberings, the rifle is available in .308. Win. with a 20″ barrel, 6.5 mm Creedmoor with a 24″ barrel and .243 Win. with a 26″ barrel. The weights vary by chambering, but with the lightest model starting at 9.7 lbs. sans optic, the Precision Rifle is not a light firearm. The evaluation gun provided by Ruger was chambered in 6.5 mm Creedmoor and—after being furnished with a scope, bipod and stock-mounted monopod—tipped the scales at just over 15 lbs.

Development of the Precision Rifle started with the stated goal of sub-m.o.a. accuracy using American Rifleman’s protocol of averaging five consecutive, five-shot groups. The end product managed to exceed that goal by a fair margin, as internal testing conducted by Ruger has yielded an average of 0.83″ at 100 yds using multiple guns. The sample sent to American Rifleman for testing performed even better than that, achieving an average result of 0.76″ at the same distance using three ammunition loads.

Forgoing a traditional rifle bedding system, which transfers recoil asymmetrically, the Precision Rifle instead utilizes a linear recoil path to provide the greatest accuracy potential. By directing unwanted movement and vibration straight back into the buttstock, the Ruger’s in-line recoil path minimizes their potential impact on the barrel of the gun as it fires.

“A good bedding system ensures the gun responds the same way during recoil every time, but this gun really isn’t bedded per se. Our gun has a much simpler system, with no friction interfaces between the receiver and stock which can move,” Gurney said. “There is only a buttstock, which is threaded on the back of the receiver, and is such a solid, in-line connection that it is essentially an integral part of the receiver.”

Ruger Precision Rifle Shooting Details-

Ruger Precision Rifle Shooting Details – Ruger Precision Rifle Details – The rifle’s buttstock (above left) can be locked in the folded position, allowing the bolt to be removed from the receiver. The patented Multi-Magazine Interface (above middle) allows the gun to feed from both rear- and side-latching box magazines, and the barrels are given a recessed crown and are threaded at the muzzle (above right) to facilitate the use of compensators or suppressors.

The rifle’s barrel is cold hammer-forged 4140 chrome/moly steel with 5R Rifling. According to Gurney, 5R places a land opposite each of the barrel’s grooves, resulting in less aggressive upset and distortion of the bullet as it engages the rifling, thereby aiding in accuracy. The 5R design also features less sharp-edged lands than those present in conventional-style rifling, reducing powder fouling and jacket failures in quick-twist barrels. The company further optimized the Precision Rifle’s accuracy by utilizing the tightest possible chamber and groove tolerances—also taking extra care to ensure a centralized chamber and minimal headspace. Rigidly affixed to the rifle’s receiver via a barrel nut, the gun’s barrel can be easily replaced by a competent gunsmith using a barrel wrench and headspace gauges.

All Precision Rifle barrels are medium-contour (0.75″ at the muzzle) and are free-floated within their fore-ends. Twist rates were selected by Ruger to ensure the rifles could stabilize the longer bullets within each chambering that are most popular with long-range shooters. The barrels are threaded at the muzzle (5/8×24 thread pattern) to facilitate the use of compensators or suppressors, and come with a thread protector. A 20-m.o.a. canted Picatinny rail is secured to the top of the receiver by four screws, allowing for increased long-range elevation adjustments with the gun.

Despite all that can go into accurizing a rifle design, it is often the trigger that either makes or breaks a precision firearm—after all, can the rest of a gun truly be considered accurate if a poor trigger makes taking good shots extremely difficult? Fortunately Ruger avoided this potential pitfall altogether by outfitting the Precision Rifle with its fine Marksman trigger. A lever-in-blade design with a user-adjustable pull between 2 lbs., 4 ozs. and 5 lbs., the Marksman trigger installed on our sample gun was superb—breaking crisply at 2 lbs., 7 ozs. Adjustments can be made externally with a wrench that comes integrated into the bolt’s shroud.

According to Ruger, among the main reasons it selected the American action as the heart of its new Precision Rifle is the 70-degree bolt throw and three-lug bolt design. The American design provided Ruger’s engineers with a platform that was easier to manipulate from the shoulder than most 60-degree bolt-action rifles, yet allowed better scope clearance than a 90-degree action. Ruger also incorporated dual cocking cams to help make operating the bolt easier, and those familiar with the American’s smooth-cycling action will recognize the same in the Precision Rifle. An oversize handle was selected for positive bolt manipulation; however, Ruger threaded the knob (5/16×24 thread) to allow for customization.

Ruger Precision Rifle Shooting Exploded View-

Ruger Precision Rifle Shooting Exploded View

When exploring its potential use in the Precision Rifle, the Ruger engineers likewise discovered that the bottom bolt lug of the American action, conveniently located at the 6 o’clock position, was able to traverse between the feed lips of many detachable-magazine designs—making it an ideal feeding aid, as the lug helps strip the top cartridge from the magazine and load it into the chamber. Clearances in the bolt body allow it to clear an inserted magazine’s feed lips when it is rotated, and an angled section facilitates its withdrawl to the rear by allowing it to gently depress and override the top cartridge.

While the project was originally intended to utilize only SR25 and Magpul PMAGs, along the way Ruger’s design team, led by Jonathan Mather, devised a method that allowed them to greatly increase the rifle’s magazine compatibility, the final result being what the company is calling its Multi-Magazine Interface. The MMI, for which Ruger has been awarded one of the gun’s seven patents, allows the Precision Rifle to operate using a plethora of both rear- and side-latching box magazines chambered for .308 Win. (.243 Win. and 6.5 mm Creedmoor cartridges will also feed through unmodified .308 Win. magazines). Examples of compatible magazines include: DPMS, M110, SR25, PMAG and AICS.

Externally the MMI appears to function much like a standard, rear-latching, M14-style magazine release, but inside the magazine well a little something extra is occurring. It essentially works in two stages—once the magazine release, which is located just forward of the trigger guard, has been pressed forward far enough, a side bar is set into motion that also actuates the side latch. Simple yet effective. The gun comes supplied with two 10-round Magpul PMAGs. It is possible that some AR-10 and M14 magazines may also function through the Precision Rifle, but Ruger warns that—due to those magazines’ wider tolerance ranges and varied production histories—most will not.

The rifle’s buttstock, a proprietary Ruger design that the company calls the Precision MSR, allows for up to 3½” of adjustment to the length of pull and 3/4″ of comb height customization. Both can be accomplished quickly in the field by flipping two cam levers on the side of the stock to the unlocked position, adjusting the stock to the desired settings and then tightening the levers down again. Although the process is a little more complicated, the cant of the buttpad can also be adjusted up to 9 degrees in either direction.

Ruger Precision Rifle Shooting Specs-

Ruger Precision Rifle Shooting Specs

Ruger’s factory buttstock has a left-folding hinge that allows it to be locked in the folded position; in fact, the stock must be moved out of the way in order to remove the bolt from the receiver. A bolt-release button is located on the upper left side of the receiver, and it is easily activated. The Ruger Precision MSR also comes with a soft rubber buttpad and a section of integral, bottom-mounted Picatinny rail for the installation of a stabilizing monopod.

The buttstock is attached via a standard mil-spec, carbine-length AR-style receiver extension, but without the internal buffer system, allowing the bolt to travel inside the extension during manipulation. As such, the rifle can accept any mil-spec AR-compatible stocks—similarly, the Precision Rifle’s pistol grip, fore-end and safety selector switch can all be reconfigured using AR-style components—which opens the gun up to the big world of AR customization. While end users are free to remove Ruger’s buttstock and swap it out with the replacement of their choice, most shooters who are primarily concerned with getting a gun they can use right out of the box will be more than happy with the Precision MSR.

The gun’s standard configuration also includes an extended-reach AR-style pistol grip, 15″ free-floating Samson Keymod Evolution fore-end and a reversible, 45-degree safety selector. If any of the rifle’s default furniture is ripe for replacement, in my opinion it’s the fore-end which—when affixed to a substantially heavy rifle like the Ruger Precision—takes on an overly aggressive texture.

The gun media’s first opportunity to lay hands on the Precision Rifle came in mid-April at FTW Ranch in Barksdale, Texas, where about a dozen gun writers got the chance to put Ruger’s latest rifle through FTW’s Precision training course. When a colleague of mine learned that I would be among those invited to attend the event, he expressed how jealous he was, calling the ranch a “long-range shooter’s paradise”—which, of course, to my mind made it the ideal venue to wring out Ruger’s new long-range rifle. And after a week spent turning the ranch’s 12,000 acres and 14 ranges into my personal playground, I have no quibbles whatsoever with my coworker’s assessment of the place.

After a brief introduction to the gun by Ruger and a short classroom session by our FTW instructors to brush up on minutes and mils and hold-overs, it was off into the Hill Country of Central Texas to see what the rifles were really capable of. Our evaluation guns were chambered in 6.5 mm Creedmoor, and topped with Burris XTR II 4-20x 50 mm riflescopes outfitted with the G2B Mil-Dot reticle. I found this to be a solid union of gun, glass and reticle. And after putting several hundred rounds downfield, I also came to the opinion that the 6.5 mm Creedmoor might well be the perfect chambering for this particular rifle.

Like the Precision Rifle itself, the 6.5 mm Creedmoor cartridge and chamber were developed from the start with accuracy in mind. With a freebore diameter specified at 0.2645″ and bullets measuring 0.2640″, the projectiles are forced to enter the rifling with minimal in-bore yaw. The Creedmoor also produces plenty of energy (most loads hover right around 2,400 ft.-lbs. at the muzzle)—and thanks to a relatively high ballistic coefficient, will retain that energy at extended distances—yet recoils minimally enough through a gun with the Precision Rifle’s heft as to allow for all-day shooting sessions with absolutely no discomfort. During the course of the event, we exclusively used Hornady’s 140-gr. A-MAX offering, and the guns seemed to agree with that load quite well.

Ruger Precision Rifle Shooting Results -

Ruger Precision Rifle Shooting Results

The end result? There’s an oft-used phrase in gun circles that you have undoubtedly heard on an untold number of occasions, “This gun shoots better than I do.” Well, triteness be danged, this is nonetheless an apt expression in the context of the Ruger Precision Rifle in my hands. I’m not too proud to admit that any steel left unrung during my time at the ranch was far more often the consequence of operator error than it was of an unpredictable rifle. Prior to my sojourn to FTW, my experience with long-range precision shooting was regrettably quite limited. And yet the Ruger Precision Rifle made me look good.

On the final day of our visit, the instructors took my fellow gun writers and me on what the ranch terms a “Drive Around,” which is essentially a Jeep tour of the premises, stopping at 10 locations along the way to take two shots at a steel target off in the distance. Target distances varied from 300 to 875 yds., with most resting in the 400 to 600 yd. range. Some were placed well above us on a ridge, others were positioned far below in a gorge and more still were so distant that several hills and valleys stood between us and our target. And due to the Hill Country’s rugged and sharply varied terrain, no two shots featured even remotely similar wind conditions.

Despite my inexperience, I managed to connect on 16 of 20 possible targets, including the 875 yd. shot situated two valleys over from my shooting position. Now, I can undoubtedly attribute much of that result to the tutoring and expert wind calls provided by FTW’s phenomenal instructors, Doug Prichard and Larry Summerfield, but a decent share of the credit must also be placed on the rifle. In addition to tack-driving accuracy, it cycled through approximately 500 rounds of ammunition without a single feeding, extraction or ejection issue.

Unfortunately, in many areas of the country it can be difficult to find adequate space to truly indulge in the sport of long-range precision shooting. The open spaces needed to really stretch a cartridge’s legs simply aren’t available to many shooters, so a lot of these folks resign themselves to the next-best alternative open to them—benchrest shooting at 100 yds. And while the Precision Rifle was made for long-distance use, it can still punch paper at closer ranges with the best of them. The first zeroed-in, five-shot, 100-yd. group I fired through the gun at FTW measured a tidy 0.51″, and as you can see from the tabulated results, the rifle is capable of keeping groups under an inch all day long—though, as might be expected given the twist rate, it does seem to favor heavier bullets.

Reaching out and hitting a small target from a distance beyond what is clearly visible with the naked eye is an amazingly gratifying achievement. I had no idea how much I would enjoy it when I set out for the ranch. And having the confidence that you’re behind the trigger of a gun that will, if you also do your part, allow you to accomplish that feat consistently brings a level of satisfaction that defies description. The Ruger Precision Rifle is just such a gun.

I’ll never forget the sense of pride and accomplishment I felt the first time I fired off a group, walked downrange and realized that I’d placed all of my shots into the same jagged hole. The Ruger Precision Rifle—offering consistent accuracy and endless customization options at a price point that most riflemen should find palatable—stands poised to introduce a whole new wave of long-distance shooters to that same rush.

This article first appeared on American Rifleman

Ruger Precision Rifle Review

Timney Ruger 10-22 Trigger

Timney Ruger 10-22 Trigger

Timney Ruger 10-22 Trigger

The Timney Ruger 10-22 Trigger  will undoubtedly set the standard for the future of aftermarket trigger upgrades for the Ruger®1022®. Featuring a one piece action of CNC machined 6061-T6 aircraft grade billet aluminum the new Timney Trigger for the Ruger® 1022® is a complete action replacement. The trigger, sear, and hammer are wire EDM cut and heat treated steel for exceptional durability. Push out the two action pins and “drop in” the new Timney complete trigger assembly. The Timney Ruger 10-22 Trigger features a Timney designed extended magazine release that can be operated by one finger for exceptional ease and accessibility. It also comes standard with an auto bolt release. As with all the Timney Triggers made in the U.S.A. each complete action replacement is hand assembled, calibrated and tested for a lifetime of reliable service. The trigger is set at 2 3/4 pounds from the factory, with no creep. It comes in a variety of trigger shoe colors:

The Timney Ruger 10-22 Trigger is available in 6 different trigger shoe colors:

  • 1022®-1c black
  • 1022®-2c red
  • 1022®-3c blue
  • 1022®-4c gold
  • 1022®-5c green
  • 1022®-6c silver