![AIP Aluminum 5.1 Recoil Spring Guide Plug (SILVER)](http://airsoftph.com/cdn/shop/products/QQ20190413150124_c4b49c77-c57d-4a60-95e4-96c2c0f1e97f_{width}x.jpg?v=1569947847)
- Aluminum Construction (CNC Machined)
- All inessential parts has been remove to keep the lightweight
- Suitable for Hi-Capa 5.1 Series GBB
- Supreme Quality & Lightweight Achieved
- As always, upgrading GBB require necessary skill & technique, consult