This excess weight was pinned to the rear in the bolt. Yet another major improve was the firing pin. The firing pin only experienced a single head and used a firing pin spring lowering pounds and mass in the firing pin. Because of the Considerably softer primers Utilized in pistol https://colt105inch9mmsmgupperrec18514.widblog.com/81571623/the-basic-principles-of-colt-smg-upper-receiver