Action:Pump-action, hammerless, featuring a tilting bolt.
Takedown System:The barrel assembly connects to the receiver via interrupted threads and lugs, allowing it to be twisted and removed.
Gauge/Chamber:Primarily 12, 16, 20, or 28 gauge, with 2¾” shells standard post-1927; earlier 20-ga were 2½”, 16-ga were 2 9/16”.
Capacity:6+1 (12 gauge).
Barrel Lengths:Common lengths include 26”, 28”, 30”, 32”, with 20” "riot" configurations.
Weight:Approximately 7.5 lbs.
Finish:Blued steel with a walnut stock.
Stock:Early models featured a shorter, rounded forearm, while later models (post-1950s) often used a longer, flat-bottomed, or slightly rounded, grooved slide handle.
Safety:Cross-bolt safety located behind the trigger.
Operational Nuances:
No Trigger Disconnect:The Model 12 allows for "slam-firing," where the gun can be fired repeatedly by holding the trigger down and cycling the pump.
Unloading:The lifter can be pressed down to easily unload shells from the magazine.
Condition Check:A common issue is a "wobble" in the barrel-to-receiver connection, though many can be tightened
