high-speed NYLON gear set, lot higher speed than the 18:1 gear set
SMOOTH AND LESS NOISE
1 x BEVAL
1 x SPUR
1 x SECTOR
1 x Motor Gear
1 x Anti-reversal Latch
Fits M4A1 GEN8, GEN9, GEN10, UMP45, SCARV2, M4A1 GEN9, MP5V2, VECTOR V2, ACR Jingji SLR AND MANY MORE.