Features :

➤ Build with Stable GHK M4 Ver.2 GBB system.
➤ Colt authorized marking.
➤ T6061 T6 forged aluminum alloy receiver.
➤ Hard anodizing receiver surface finish.
➤ Modified handguard thread of upper (compatible with RS).
➤ New GBB SPEC HOP-UP KIT with a quick adjustment tool.
➤ G-Style STEEL gas block, with corresponding gas tube.
➤ Comes with KAC type rare flip-up sight, and LMT Gen2 type retractable stock.
➤ Reinforce nylon feed nozzle, steel parts of fire control, 6th version hammer.
➤ New version of the magnetically bolt catch system, reliable lock of the bolt carrier group.
➤ New GMAG type M4 gas magazine, compatible with ALL gen. GHK M4 / G5 / GMAG gas magazine.