M4V3-K-03 AR V3 Buffer & Recoil Spring
M4-K-04 AR Quick Adjust HOP Upgrade Kit
URGI-2 SOCOM 4-Prong Flash Hider
URGI-3 G Style Gas Block
URGI-4 URG-I Barrel Nut
M4-K-03-3 AR Lightweight Buffer
M4-K-04-2 AR Quick Adjust HOP-UP Tool
M4-K-05 375mm Inner Barrel (GBB SPEC)
URGI-S URG-I Handguard Rail Screw
M4-K-06 265mm Inner Barrel (GBB SPEC)
M4V3-K-02 AR V3 Valve Knocker & Hammer Spring
M4-K-04-1 AR Quick Adjust HOP-UP Set
