B5 COLLAPSIBLE PREC STK LNG CB

Description

The B5 Systems Collapsible Precision Stock Long is built for shooters who run magnified optics on precision or designated marksman rifles and need a stock that keeps pace with a serious scope setup. Where a standard carbine stock forces a fixed cheek position, this one offers both an adjustable cheekpiece and an extendable buttpad, letting you dial in the precise head height a high-mounted scope demands without shimming or improvising.

Rattle is a persistent problem with collapsible stocks on mil-spec buffer tubes, and B5 addresses it mechanically rather than through fit-and-forget friction: twelve internal tensioners hold the stock firmly against the tube across its full range of positions. The result is a platform that behaves more like a fixed stock in terms of consistency, while still collapsing for transport or storage.

The anti-rotation QD sling mounts are steel and limit rotation, so a sling under tension does not spin the attachment point and wear the socket. Fixed sling mounts are included as well for shooters who prefer a traditional loop or non-swiveling attachment. Bottom-mounted M-LOK slots allow a monopod to thread directly into the stock, which matters when you want to support the rear of the rifle without a separate clamping attachment adding height or play.

The Long designation makes this variant the appropriate choice for side-charging rifles or builds using a side-folding adapter, where the standard-length nose would otherwise create clearance problems. Construction is reinforced polymer, and the stock is made in the United States.