GHK M4A1 GEN2 10.5" GBB( 2023 Version /Colt Licensed /M4 V2 GBB System)

FEATURES:
??2023 Improved Edition GHK M4A1 GBB.
??Redesign of receivers inner structure, improved the bolt stop function.
??Reversion The upper handguard thread has been change to the RS.
??Upgrade NEW HOP-UP KIT (GBB SPEC.), comes with a quick adjustment tool.
??Upgrade buffer shell made by 7075 aluminum alloy.

??Build with stable GHK M4 V2 GBB system.
??Colt licensed roll mark.
??KAC rail handguard.
??KAC type front /rare flip-up sight set.
??ARMY type retractable stock.
??6.03mm precision inner barrel (GBB SPEC).
??CNC process steel bolt carrier, much durable and worked smooth.
??Reinforce nylon feed nozzle.
??Full steel parts of fire control (hammer set).
??Magnetically bolt catch system, reliable lock of the bolt carrier group.
??Aluminum die-casting receiver, treatment of anodized processing, not easy to scratch rust.
??Buffer extension thread of the lower receiver is stronger and less broken.
??Comes with GHK M4 V2 gas magazine (STANAG Style).

?»Compatible with ALL gen. GHK M4 / G5 / GMAG gas magazine.
?»All parts inside and outside of the 2023 new receiver installtion are the same as previous parts of GHK M4 V2 GBB system.
??023 new receivers can NOT be installed with the old gen GHK M4 upper or lower receiver.
??023 new receivers can NOT be installed with the FORGED GHK M4 upper or lower receiver.
??023 new receivers are NOT made with forging material.