This is a top notch OEM metal hopup unit, used by many major AEG manufactures. For AK47, AK74, AK47S, AK47U, SVD, RPK and other compatible AK series AEG
Manufacture: Matrix (USA) OEM:CYMA
Compatibility: For Marui, ICS, G&G, JG, Tokyo Marui SRC, Matrix, Echo1, Classic Army, CYMA, DBOYS, VFC and other compatible brands.
The one-piece structured die-casting improves firmness of the chamber and stabilizes the muzzle velocity. At the same time, it fits tightly to the barrel base to keep the chamber being centered.