CMMG Collapsible AR-15 Stock Kit

Upgrade your AR-15 with the CMMG Collapsible Stock Kit. This comprehensive kit features a 6-position receiver extension, carbine buffer assembly, and carbine action spring for enhanced performance. The 6-position butt stock assembly ensures a customizable fit, while the durable polymer and aluminum construction provides reliability. Perfect for completing your lower group with precision fitment, this black matte finish stock kit is a must-have AR-15 accessory.