B5 Systems Sierra K Stock — Wolf Gray

The Sierra K is a purpose-driven compact stock from B5 Systems, optimized for PDW and compact weapon systems. It offers a reduced overall size and a slim cheek profile to maintain a low snag footprint. Controls include a snag-free adjustment lever and a limited-rotation QD for streamlined sling attachment. The design incorporates internal tensioners and an anti-slip buttpad and mounts via a shortened compact Mil‑Spec receiver extension.

Key Specifications

• The model is Sierra K.
• The color is Wolf Gray.
• The weight is 6.60 oz.
• Designed to fit AR Rifles.
• The product type is Stock.
• The overall dimension is 2.00 x 6.90 x 10.55.
• The recorded length dimension is 10.5500.
• The recorded width dimension is 6.9000.
• The recorded height dimension is 2.
• Included features are reduced overall size, slim cheek profile, snag-free adjustment lever, limited-rotation QD, integral fixed sling mounts, internal tensioners, and anti-slip buttpad.

Compact and thoughtfully detailed, the Sierra K stock provides a low-profile mounting solution for operators seeking a balanced combination of control and concealability on compact AR platforms. Its slim profile and integrated sling options make it well suited to PDW-style configurations where space and ergonomics matter, while the anti-slip buttpad and internal tensioners help maintain consistent shoulder placement during routine use.