Description The B5 Systems Sierra K is a purpose-driven compact stock designed for use on PDW and other compact weapon systems. It reduces overall size and presents a slim cheek profile for comfortable, low-profile carriage. The stock includes a snag-free adjustment lever, limited-rotation QD, integral fixed sling mounts, internal tensioners, and an anti-slip buttpad. It mounts via a shortened compact Mil‑Spec receiver extension for straightforward installation on compatible AR rifles. Key Specifications The model is Sierra K. The color is Flat Dark Earth. The stock is designed to fit AR Rifles. The product type is Stock. The weight is 6.60 oz. The length measures 5.63 inches. The width measures 1.50 inches. The height measures 3.80 inches. Mounting is via a shortened compact Mil‑Spec receiver extension. Included features are slim cheek profile, snag-free adjustment lever, limited-rotation QD, integral fixed sling mounts, internal tensioners, and an anti-slip buttpad. Lightweight and compact, the Sierra K balances reduced profile with practical control for close-quarters and compact-system configurations. Its slim lines and integrated mounting options make it a sensible choice for shooters seeking a low-profile stock that preserves handling and stability in tight setups.
