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M16A2
Lower Receiver and Buttstock Assembly

1Screw, Pistol Grip9Spring, Takedown Pin17Plunger, Bolt Catch25Pin, Hammer and Trigger
2Washer, Lock, Pistol Grip10Detent, Takedown Pin18Spring, Bolt Catch26Hammer Assembly
3Grip, Rifle11Takedown Pin19Catch, Magazine27Disconnect, Primary
4Spring, Safety Selector12Pin, Pivot20Button, Magazine28Disconnect, Burst
5Detent, Selector13Buffer Assembly21Spring, Magazine29Trigger Assembly
6Screw, Self Locking, Butt Plate14Spring, Buffer22Pin, Automatic Sear30Lower Receiver And Extension
7Buttstock Assembly15Pin, Bolt Catch23Sear  
8Spacer, Buttstock16Bolt Catch24Lever, Selector  
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Buttstock Assembly

1Screw, Self Locking5Hinge, Trap Door
2Swivel, Sling6Trao Door
3Butt Plate7Buttstock
4Pin, Trap Door  
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Hammer Assembly

1Spring, Hammer3Cam, Burst
2Spring, Cam4Hammer
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Trigger Assembly

1Spring, Trigger
2Spring, Disconnect (2)
3Trigger
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