B5 Systems Sierra K Compact PDW Stock - Coyote Brown

The B5 Systems Sierra K is a compact PDW-style buttstock finished in Coyote Brown and engineered around B5 Systems' Sierra receiver extension. At just 6.60 oz and measuring 5.63" long x 1.50" wide x 3.80" tall, the Sierra K brings a short, snag-free profile to the back end of a rifle and is intended for use with B5 Systems' purpose-built AR-platform receiver extension.

Length-of-pull is adjusted via a snag-free adjustment lever, and the stock is finished with an anti-slip buttpad for a stable shoulder weld. Internal tensioners lock the Sierra K solidly onto the receiver extension to eliminate wobble, and the unit is built with Mil-Spec materials and finishes for hard field use.

For sling attachment, the Sierra K is equipped with ambidextrous quick-detach (QD) sling mounts featuring limited-rotation QD compatibility, allowing a push-button QD sling to be mounted on either side of the rifle. The Coyote Brown color blends easily into mixed and arid terrain.

Note: the receiver extension tube is not included. The Sierra K stock mounts to the B5 Systems Sierra receiver extension (sold separately).