Sterling Submachine Guns

The Sterling submachine gun is a select fire blowback operated weapon that fires the 9mm cartridge from an open bolt.

What holds the boss of the barrel onto its subassembly in the front trunnion area of the barrel casing?

The front sight of a Sterling submachine gun can utilize how many different heights to sight the weapon in for accuracy?

Does the Sterling submachine gun’s barrel use a “full round” feed ramp?

When firing a sterling submachine gun, at the moment of a cartridge primer’s ignition, there is a gap between the breech face and the bolt face, why?

What type of magazine design does the Sterling submachine gun utilize?

What happens in the trigger group of a Sterling submachine gun when its selector is set to the “on safe” position?

Why does the bolt of a Sterling submachine gun have spiraled ridges?

1. The bolt does not have spiraled ridges.
2. Less contact with the inside of the receiver to reduce friction.
3. To quickly drain water from the weapon in case it was submerged, thus preventing dangerous over-pressure.
4. To remove debris.