Hephaestus Full Steel Recoil Power Kit with Aluminum Adapter for GHK AK Series (Except AKS74U & AKMS

Hephaestus Full Steel Recoil Power Kit with Aluminum Adapter for GHK AK Series (Except AKS74U & AKMSU) Steel Construction Design For Replace the Orignal Piston Guide Rod Suitable For GHK AK Series Airsoft Rifle ( Can Not fit AKS74U or AKMSU ) Design for adds extra weight to your bolt for a stronger recoil feel, especially with full automatic fire.