Phase 5 Weapon Systems CMSA Carbine Mini Stock Assembly Black Aluminum for AR-15/AR-10

The Phase 5 Weapon Systems CMSA (Carbine Mini Stock Assembly) is a compact, fixed-position stock kit engineered for AR-15 and AR-10 rifle platforms. This all-in-one assembly pairs Phase 5's Universal Mini Stock (UMS) with the proprietary HexOne buffer tube, giving builders a complete drop-on solution for short-barreled rifle builds, AR-pistol configurations, and any application where a minimal footprint and a solid cheek weld are required.

The stock body is CNC-machined from billet aluminum and finished in a durable black coating, keeping the assembly light without sacrificing rigidity. The included HexOne buffer tube is compatible with Mil-Spec 6-position carbine receiver extensions, and the kit ships with the carbine buffer, buffer spring, and castle nut needed to complete installation right out of the box.

Built around the standard carbine buffer pattern, the CMSA is well suited to common rifle cartridges including 5.56x45mm NATO, .300 Blackout, 7.62x39mm, and .308 Winchester / 7.62x51mm NATO when paired with the appropriate AR-10 lower receiver. The fully assembled overall length is 7.75 inches and the complete assembly weighs 1.13 lbs, making it a smart choice for compact rifle and AR-pistol builds where saving space and shedding weight both matter.

Condition: New