breech mechanism lever retaining catch

lever breech mechanism (LBM)

breech mechanism lever

breech-mechanism lever

handle of breech mechanism lever

catch-as-catch-can warfare

rammer catch lever

breech mechanism

breech-opening mechanism

wedge-type breech mechanism

unlocked breech mechanism

vertical wedge-type breech mechanism

vertically-operated wedge-type breech mechanism

belt feed lever pivot spring / belt-feed lever pivot spring

firing-lever spindle actuating lever

flap slat CTL lever / flap and slat control lever

retaining bracket

retaining ring

retaining strap

axle-tree retaining bolt locking pin

blade retaining pin

bolt handle spring retaining pin

cap retaining pin

cap retaining pin bushing

cap retaining pin bushing assembly

cap retaining pin screw

cap retaining pin spring

ejector retaining pin

ejector spring retaining pin

firing pin retaining pin

outside retaining pin

retaining pin

safety spring retaining pin