*Tight lock design to prevent fallout. *Hex hole head design! The trigger lock pin of HK 416 tends to get lost, due to its hole getting bigger, from repeated recoil shock and stripping during upgrades. This “HK416D Trigger Lock Pin”…
SOPMOD M4 is supported due to its metal frame and its shoot and recoil engine gimmick. Because of these realistic truthful features, it also runs into some problems. The hole for trigger lock pin on the metal frame often becomes…