M4V3-K-03 AR V3 Buffer & Recoil Spring
M4V3-K-02 AR V3 Valve Knocker & Hammer Spring
M4V3-K-01 AR V3 Bolt Carrier Group
M4-K-06 265mm Inner Barrel (GBB SPEC)
M4-K-05 375mm Inner Barrel (GBB SPEC)
M4-K-04-3 AR Quick Adjust HOP-UP Bucking and Nub
M4-K-04-2 AR Quick Adjust HOP-UP Tool
M4-K-04-1 AR Quick Adjust HOP-UP Set
M4-K-04 AR Quick Adjust HOP Upgrade Kit
M4-K-03-3 AR Lightweight Buffer
M4-K-03-2 Enhanced Buffer Spring
M4-K-03-1 CNC Aluminum Bolt Carrier
