Features :

➤ Upgrade NEW HOP-UP KIT with a quick adjustment tool.
➤ Upgrade buffer shell made by 7075 aluminum alloy.
➤ Build with Stable GHK M4 Ver.2 GBB system.
➤ Colt authorized marking and improve surface finish.
➤ G-Style MK16 SMR 9.3" handguard, CNC process aluminum alloy, anodized surface finish.
➤ SF-Style SOCOM type STEEL 4-prong STEEL flash hider.
➤ DD-Style GOV Mid-Length type 10.3 STEEL outer barrel.
➤ G-Style STEEL gas block, with corresponding gas tube.
➤ Comes with KAC type rare flip-up sight, and LMT Gen2 type retractable stock.
➤ New CNC process Steel Bolt Carrier, much durable and worked smooth.
➤ 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.
➤ Buffer extension thread of the lower receiver is stronger and less broken.
➤ New GMAG type M4 gas magazine, same effective but super light-weight.
➤ Compatible with ALL gen. GHK M4 / G5 / GMAG gas magazine.