B5 Systems CPS1306 Precision Coyote Brown Synthetic Adjustable with Cheek Riser Fits AR-Platform

The B5 Systems CPS1306 Precision stock is a toolless-adjustable AR-platform stock built for shooters who demand repeatable positioning without guesswork. Unlike fixed stocks, this Coyote Brown synthetic design lets you fine-tune both length of pull and cheek height independently—critical when you're dialing in a precision rifle setup or adapting the fit across different shooters and gear configurations. The locking latch holds your settings once dialed in, so your zero doesn't drift between range trips.

What sets the Precision stock apart is its compatibility with carbine and A5 receiver extensions, giving you longer adjustment range than standard commercial-tube stocks. That matters if you're running a precision build where every millimeter of eye relief and stock position affects your performance. The shortened, angled nose design accommodates single-point slings when the stock is collapsed, and the integrated QD cups (left and right, with limited rotation) plus fixed mounts give you flexible sling routing options. M-LOK slots on the underside let you attach monopods or other tactical gear.

The CPS1306 is compatible with Law Tactical folding adapters for shooters who need compact transport or storage. All controls operate without tools—adjust, lock, and move on. This stock is engineered specifically for AR-platform rifles and comes in a durable synthetic shell that handles field use without unnecessary weight.

Key Features

• Toolless adjustment of length of pull and cheek height
• Locking latch secures settings in place
• Fits carbine and A5 receiver extensions for extended adjustment range
• Left and right QD cups with limited rotation plus fixed sling mounts
• M-LOK attachment slots for monopods and accessories
• Shortened, angled nose design for single-point sling compatibility
• Compatible with Law Tactical folding adapters
• Coyote Brown synthetic construction

Specifications

Frequently Asked Questions

Will this stock fit my AR-15 or AR-10?

The CPS1306 is designed for AR-platform rifles and mounts to carbine or A5 receiver extensions. B5 Systems makes separate models for AR-15 and larger-caliber platforms (7.62, 6.5 Creedmoor), each with cheek-piece geometry optimized for that platform's charging handle position. Verify which model matches your build before ordering.

Can I use this stock with a folding adapter?

Yes, the Precision stock is compatible with Law Tactical folding stock adapters, allowing you to collapse the stock for compact transport or storage while retaining full adjustability when deployed.

What sling mounting options does it have?

The stock includes left and right QD (quick-detach) cups with limited rotation for standard QD sling swivels, plus two fixed sling mounts. The shortened nose design also works with single-point slings when the stock is collapsed.

Do I need tools to adjust length of pull or cheek height?

No. Both length of pull and cheek height adjust toollessly. Once you've dialed in your position, the locking latch secures the setting so it won't shift during use.