The B5 Systems Sierra K Stock is a purpose-driven compact stock optimized for PDW and compact weapon systems. It features a reduced overall size, slim-profile ergonomic cheek weld, snag-free adjustment lever, internal tensioners, ambidextrous sling mounts, and an anti-slip buttpad. It mounts via the proprietary B5 Systems Sierra K Extension tube (receiver extension kit sold separately).
***Installing the Sierra K on a standard length Mil-Spec Buffer Tube will not allow the stock to fully collapse**
***Installing the Sierra K on a standard length Mil-Spec Buffer Tube will not allow the stock to fully collapse**
Features
- Optimized for PDW and compact weapon systems
- Low-profile adjustment latch
- Slim-profile ergonomic cheek weld
- Color-matched steel hardware
- Ambidextrous fixed sling mounts and limited rotation QD mounts
- Mil-spec materials and finishes
- Weight: 6.6 oz
- Length: 5.63 in
- Width: 1.5 in
- Height: 3.8 in
- Made in the USA (Patent Pending)
