Sterling Trucks UMP45 Automobile User Manual


 
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DESCRIPTION OF ASSEMBLY GROUPS
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Fig. 10 Lower receiver with trigger mechanism,
backplate and magazine well
1 Trigger 7 Trigger mechanism
2 Magazine release lever 8 Backplate
3 Magazine well 9 Buffer
4 Attachment lugs 10 Support for recoil spring
5 Bolt catch 11 Safety/Selector lever
6 Release lever 12 Trigger guard
safe semi-automatic fire fully automatic fire
Fig. 11a, 11b, 11c Positions of the safety/selector lever for safe,
single fire, and fully automatic fire
safe semi-auto. fire 2-round burst fully automatic fire
Fig. 11d, 11e, 11f, 11g Pistol grip with trigger mechanism for safe,
single fire, 2-round burst, and fully automatic fire