● Specification：Long version
● Compatible：AKM, AKMS, AIMS, AK105, AK74MN, AKS74M, AK74, AKMN (except AKS74U).
● Material：Steel made
● Content: Include enhanced blowback kit rod set*1, strong recoil spring*1.
● This item is able to replace the original aluminum rod, for increasing the blowback performance. (Increase 40% blowback recoil)