Description
The SB22 Fixed Kit is SB Tactical's answer for anyone who wants to reshape a Ruger 22 Charger or fixed-barrel 10/22 into something far more modern and portable. Built in partnership with Unity Tactical, this chassis measures 15 inches long and tips the scale right around 17 ounces, so you get a serious upgrade in versatility without weighing your rifle down. The body is molded from durable reinforced polymer with an aerospace-grade aluminum insert that locks onto the receiver, and the high-wear spots like the rear rail, grip mount, and QD point are metal where it counts.
What Makes the SB22 Chassis a True Pack Gun Setup
The rear of the chassis is capped with a Picatinny (M1913) section, which is the whole point of this thing. Bolt on a folding brace or stock and you can fold the whole package down for a truck bag or backpack, then deploy it in seconds. Any M1913-compatible brace or stock works, so you are not locked into one brand. Up front, the recessed handguard carries M-LOK slots at the 3, 6, and 9 o'clock positions for lights, bipods, or a hand stop, and an integrated ambidextrous steel QD socket handles your sling.
Grip and Optic Options Built Into the SB22 Fixed Kit
This kit accepts standard AR-15 pistol grips, so you can run whatever feels right in your hand, and it comes with a Reptilia CQG grip already included. You also get two top covers: a flat top cover for a clean, snag-free profile, and a Picatinny bridge mount when you want to run an optic or extra rail real estate over the receiver. That flexibility lets you set the rifle up for hunting small game, plinking, or just building the ultimate compact rimfire.
One thing worth knowing going in: this is the Fixed version, meaning it fits fixed-barrel 10/22 and Charger models and their clones, not the takedown variants. Fit is snug by design for a rock-solid lockup, and SB Tactical has a well-earned reputation for standing behind their gear if you ever need a hand.
Key Specifications
- Manufacturer: SB Tactical
- Manufacturer Part Number: 22F-01-SB
- UPC: 699618783278
- Model: SB22 Fixed Kit
- Fit: Ruger 22 Charger, Ruger 10/22, and clones (fixed models)
- Length: 15 inches
- Weight: 17 oz
- Color / Finish: Black
- Material: Reinforced polymer with aerospace-grade aluminum insert
- Rear Rail: Picatinny (M1913)
- Forend Mounting: M-LOK slots at 3, 6, and 9 o'clock
- Sling Attachment: Integrated ambidextrous steel QD socket
- Grip Compatibility: Standard AR-15 pistol grips
- Product Type: Chassis
What’s Included
- SB22 Fixed chassis body
- Reptilia CQG grip
- Picatinny (M1913) bridge mount top cover
- Flat top cover
- Mounting hardware
Frequently Asked Questions
Will the SB22 Fixed Kit fit my takedown 10/22?
No, this is the Fixed version and it is built for fixed-barrel Ruger 10/22 and 22 Charger models along with their clones. If you have a takedown rifle, you will want SB Tactical's SB22 Takedown kit instead. Double-check which action you have before ordering so you get the right chassis.
Does the SB22 chassis come with a brace or stock?
It does not. The rear of the chassis has a Picatinny (M1913) rail, so you add any M1913-compatible brace or stock of your choice. That open design is a big plus since you can pick a folding option to make the whole setup fold flat for storage or a pack.
Can I mount an optic on the SB22 Fixed Kit?
Yes. The kit includes a Picatinny bridge mount top cover that gives you rail space over the receiver for a red dot or scope. There is also a smooth flat top cover in the box if you prefer to run iron sights or keep a slimmer, snag-free profile.
Is the fit tight during installation?
The chassis is designed for a snug, solid lockup, so seating the barreled action can take a firm hand. Take your time getting the trigger housing and receiver aligned, and it settles in for a rock-steady fit. SB Tactical is known for great customer support if you run into any fitment questions.






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