Features :

➤ Build with Stable GHK M4 Ver.2 GBB system.
➤ 2020 revision of the authorized marking and improve surface finish.
➤ 2022 revision of the upgrade buffer shell made by 7075 aluminum alloy.
➤ Comes with KAC type rare flip-up sight, and ARMY style retractable stock.
➤ New HOP-UP adjustment system and 6.03mm precision inner barrel.
➤ 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.
➤ Aluminum die-casting receiver, treatment of anodized processing, not easy to scratch or rust.
➤ Buffer extension thread of the lower receiver is stronger.
➤ New M4 V2 STANAG style gas magazine, same effective but super light-weight.
➤ Compatible with ALL gen. GHK M4 / G5 / GMAG gas magazine.