W&S Full Travel Kit For GHK AK GBB Series UMP45 which includes a bottom rail

which includes a bottom rail that can be used to attach tactical accessories

Reinforced Hammer(TS-82)

Valve Knocker Spring

32 years)  Suitable for Tokyo Marui G17/ 18C/ 26 Series Airsoft Gas Blow Back GBB Pistol

W&S Full Travel Kit For GHK AK GBB Series UMP45 which includes a bottom railDo you wish your favorite GHK AK had even more kick? Well, now you can upgrade it with a W&S full bolt travel kit! The W&S GHK AK full travel kit increases the stock bolt travel from 85mm to 115mm! It also features a steel reinforced hammer. Specification: Colour: Black Material: Steel Compatibility: GHK AKS74U AK74 AKM AK105 GBB Series