Verified Firearm Specifications

Search our database of normalized firearm specifications. Compare precise weights, barrel lengths, and action types across thousands of unique models.

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FMK-3 submachine gun vs Thompson submachine gun

Objective Side-by-Side

FMK-3 submachine gun

Fabricaciones Militares

FMK-3 submachine gun image

Thompson submachine gun

List of manufacturers Auto-Ordnance Company (originally) The Birmingham Small Arms Company Limited Colt Savage Arms RPB Industries

Thompson submachine gun image

FMK-3 submachine gun Specs Snapshot

Weight 120 oz
Barrel Length 11.4 in
Overall Length 20.6 in
Standard Capacity N/A
Caliber 9×19mm Parabellum
Action Type blowback
Avg Used Price $750.00
Avg New Price $1,200.00

Thompson submachine gun Specs Snapshot

Weight 172.8 oz
Barrel Length 10.52 in
Overall Length 33.7 in
Standard Capacity N/A
Caliber .45 ACP (11.43×23mm) 10mm Auto (limited quantity of FBI conversions) [ 26 ]
Action Type blowback
Avg Used Price $1,800.00
Avg New Price $2,500.00

Differences At A Glance

Weight -52.8 oz
Barrel Length +0.88 in
Overall Length -13.1 in
Standard Capacity
Caliber
Action Type
Avg Used Price -$1,050.00
Avg New Price -$1,300.00