Minimi M249 - M60 - PKM 8mm. Gear Box by RetroArms M93R and the Vietnam

and the Vietnam

Cinghia in cordura per serie AK con agganci in metallo

Gear box completo per MP7A1 e similari

Produzione prismatica in tecno polimero

Minimi M249 - M60 - PKM 8mm. Gear Box by RetroArms M93R and the VietnamCNC airsoft gearbox Remade and upgraded CNC gearbox from Retro ARMS with new suffix "7075 series". Gearbox for airsoft machine gun M249 and PKM is completely milled at CNC machining center. Compared to other aluminium gearboxes, our is made out of solid block of aluminium AW EN7075 T651. It is not casted like Chinese brand ones! Tested wit M160 spring without any signs off wear or breaking. It is recognizably reinforced all over. Gearbox's surface is