FCW Echo1 GAT KG-9 M4 Tube Adapter Set -Toy Airsoft Part Only Fit ECHO1 KG-9 GAT AEGMade By High Tension Nylon Fiber Coming with M4 TubeFCW Echo1 GAT KG-9 M4 Tube Adapter Set -Toy Airsoft PartSKU: FCW-KIT-KG9M4$68.00PriceQuantityAdd to CartBuy Now