B5 Systems Sierra K AR-15 Fixed Compact Stock - Wolf Gray Polymer

The B5 Systems Sierra K is a purpose-driven fixed compact buttstock engineered for PDW and compact AR-platform weapon systems. Molded from high-strength polymer and finished in Wolf Gray, it shrinks your rifle's footprint without giving up a usable cheek weld.

At just 6.6 oz and only 5.63" long, the Sierra K trims significant length off your rifle while still giving the shooter a solid cheek rest. The slim cheek profile keeps the head upright for use with optics and night vision, and a snag-free adjustment lever lets you quickly set the cheek height without snagging on gear or slings.

Sling attachment is handled by limited rotation QD sockets along with integral fixed sling loops, and the stock body houses internal storage compartments for small tools or batteries. The Sierra K is built to fit AR-15 rifle platforms and pairs with a Mil-Spec receiver extension to round out a clean, compact PDW-style build.