Original Chassis/Stock System for Ruger 10/22-Style Firearms


A super-rigid and versatile stock system for your Ruger® 10/22.

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The Original Chassis takes AR-style handguards, grips, and stocks. I will also have my own carbon fiber stocks available for it soon. If you want my new Comp Chassis, click here: Comp Chassis Page. This chassis only fits standard Ruger® 10/22 receivers – most aftermarket receivers like Volquartsen won’t fit. However, most aftermarket triggers will work. I have special Volquartsen trigger grip inserts – please let me know when you order.

The Original Chassis weighs only 13.79 ounces and the the Original Lite is just 12.98 ounces.

Any standard AR-compatible free-float handguard can be used on the chassis. To determine what length handguard to use, add 2.5” to the length of the handguard to determine how much barrel will be covered. Example: 12” handguard + 2.5” = 14.5”, so for 16” barrel, 16-14.5=1.5” of barrel sticking out of handguard. For the stock, a castle nut is not required because the buffer tube/stock set screw provides a very secure attachment.

A very slim, lightweight, versatile, and SUPER-STABLE precision chassis for your Ruger® 10/22. A patented design (US Pat #10012460) that allows ALL AR-compatible free-float handguards to securely attach with proper rail alignment and no gaps. The lower chassis features standard attachment points for AR buffer tubes/stocks/arm braces and grips (beaver-tail grips need to be trimmed). A Nylon-12 grip spacer is included that provides a smooth transition from the AR grip to the Ruger® 10/22 trigger guard.

Includes a precision adjustment screw at the base of the receiver that pins down the back of the receiver for a custom, super-tight fit with any standard Ruger® 10/22 receiver – no tangs, inserts, or bedding needed! And no modification of the receiver necessary! This is a “set and forget” feature – adjust it during the initial assembly procedure and then install the buffer tube. The firearm will still disassemble/assemble with the single Ruger® 10/22 factory takedown screw.

The upper and lower chassis is each CNC-machined from a single billet of “military-grade” 6061-T6 hardened aluminum alloy and then finished with a mil-spec anodized hardcoat- VERY tough and the entire assembly weighs ONLY 15.2 ounces! Precision machining, receiver adjustment screw custom fit, and free-floating barrel design maximize accuracy.

Accepts all Ruger® 10/22 barrel profiles including 0.920-inch “bull” barrels. Single-screw takedown for easy cleaning and service. Optics, sights, lasers, etc. mounted on the receiver rail or hand guard are unaffected. Drop-in installation – no modification of your Ruger® 10/22 is required (dovetailed rear sight on original-style barrel needs to be removed). Price includes upper chassis, lower chassis, adjustment screw, top receiver (scope mount) screws, grip screw (w/ washer), take-down screw (w/ washer and nylon retainer), buffer tube/stock set screw, grip spacer, and instructions (Ruger® 10/22 firearm, stock, grip, and handguard not included).

Additional information

Weight 20 oz

Original Slick-Side, Original Lite


Anodized Black, Gun Metal Grey, Burnt Bronze, OD Green, FDE, Desert Sand, Stealth Grey, Habanero Red, NRA Blue, Satin Aluminum


Crazy Ivan discusses AND SHOOTS a basic precision rifle build.

Crazy Ivan reviews features of 10/22 Chassis System

Downloads & Resources

In my video I discuss only needing one take for the target shooting – the reason was that I wanted to demonstrate the basic Ruger® 10/22 in my Crazy Ivan Stock System has performance AT LEAST equal to the new Ruger® Precision Rimfire Rifle. I easily shot a better average and best group, so I quit! I neglected to mention that!  See the entire Guns and Ammo review of the Ruger® Precision Rimfire Rifle at gunsandammo.com:


Crazy Ivan 10/22 Chassis Instructions
Click this link for .pdf:
Original Chassis Instructions new09042020


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