NOW COMES WITH HEAVY RETURN SPRING
M4A1 GEN8 MULTI UPGRADE PACK
INCLUDES:
UPGRADE PACK 1 (1.3mm SPRING, BEAST ADC HOPUP, ALLOY BARREL,T-PIECE)
HULK UPGRADE (UPGRADED 460 MOTOR, FULL METAL GEAR SET, UPGRADED PISTON + O'RING)
HEAVY RETURN SPRING
BEARING X 6
SHIM KIT
Customer Reviews
Based on 1 review
Write a review