FIRECLUB PRO MP5 G3 GSG5 GSG-5 A5 Claw Scope & Sight Mounts 100% Aluminum Picatinny Tactical 100% brand new. Full construction of metal. 20mm Weaver mounting for scope attachment. Easy to hook up. Material: Aluminum Alloy. Length: 90mm (3.54"). Width: 20mm(0.78"). Made in China (Unbranded) Fits GSG5 G3 & MP5 (also many Airsoft MP5 Mocks)