JM Gen8 Gearbox — Full Nylon Replacement for JinMing M4A1, SCAR, UMP45 & More Type:new (semi / full auto) Firing Mode: Semi / Full-Auto

Firing Mode: Semi / Full-Auto

Package Weight: 310g

Compatibility: for jing ji slr and std slr gel blaster guns

L(120-160kg)

JM Gen8 Gearbox — Full Nylon Replacement for JinMing M4A1, SCAR, UMP45 & More Type:new (semi / full auto) Firing Mode: Semi / Full-AutoThis is the famous Jinming Gen 8 Gearbox, it's full nylon made, reliable and durable. This is superior to the old one with metal bushings and nylon gears. But most importantly a harden nylon shell. Compatible with JinMing SCAR JM Gen8 M4a1 HLF UMP45 JM MP5 JM Gen13 XM316 blg m16 ZH m249 and other gel blasters using gen8 gearbox. Features: Full Nylon Construction Hardened nylon shell, gears, trigger, T piece and motor housing for superior durability