Hephaestus Full Steel Simulated Recoil Spring Assembly for GHK AK GBB Rifle Series (Enhanced Version) Cocking Handle Internally there have been some

Internally there have been some improvements as well such as a newly designed bolt set that provides much higher felt recoil

C&C MK16 M-LOK 13

The world’s first patented switch-free design—just shake to power on

compatible with MARUI/ KJ/ VFC/ WE (New version need to change inner barrel)

military operations and training such as MFF

Hephaestus Full Steel Simulated Recoil Spring Assembly for GHK AK GBB Rifle Series (Enhanced Version) Cocking Handle Internally there have been someFull steel construction: Stainless steel Recoil Spring Guide and Spring Cap. Steel Retainer with abrasion resistant QPQ finishing. Equipped with 110% Recoil Spring for sharp recoil. Increase kick and enhance shooting experience. Evolved design for smooth operation and easy installation. Suitable for GHK AK GBB Rifle series. Reinforced replacement for original Recoil Spring Set ( GKM 08 1 ).