The B5 Systems SRK1657 Sierra K in Coyote Brown is a purpose-driven compact stock, optimized for use on PDW and compact weapon systems. It features a reduced overall size and slim cheek profile, snag-free adjustment lever, limited rotation QD and integral fixed sling mounts, internal tensioners, and an anti-slip buttpad. It mounts via a shortened compact Mil-Spec receiver extension.

Ideal for range time and training, the Sierra K offers versatility and reliability. B5 Systems is renowned for its innovation and quality in firearm accessories.

Key Features:
- Manufacturer: B5 Systems
- Model: Sierra K
- Product Type: Stock
- Weight: 6.60 oz
- Length: 5.63"
- Width: 1.50"
- Height: 3.80"
- Unique Features: Snag-free adjustment lever, anti-slip buttpad