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Sten Mk II
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Quick Overview
Origin
Production
1941 - 1945
Caliber
Overview
The Sten is a family of British open-bolt blowback-operated submachine guns chambered in 9×19mm. Designed for mass production during World War II, it became the standard British SMG and was produced in the millions, famously simple and inexpensive to manufacture.
Calibers & Ammunition
Dimensions
Overall Length
762mm (30 in)
Barrel Length
197mm (7.75 in)
Weight
2.95 kg (6.5 lb) empty, 3.7 kg (8.2 lb) loaded
Mechanical
Action Type
Blowback, open bolt
Trigger Type
Selective fire (safe, semi, full auto — Mk II) or full auto only (some variants)
Sights Type
Fixed front post, fixed peep rear — crude but functional
Magazine Capacity
32 rounds — side-mounted (MP40-compatible design)
Additional Information
parts
47 parts total — extreme simplicity
action
Blowback, open bolt
barrel
Quickly removable for compact storage — designed for paratroopers
magazine
32-round side-mounted magazine (direct copy of MP40 design)
construction
Stamped steel tubing — incredibly cheap to produce (~$2.70/unit)
rate_of_fire
500-600 rpm
How does the Sten Mk II compare?
Pick any other firearm for a side-by-side spec breakdown.