After removing the upper receiver and barrel assembly, disassemble the lower receiver. The hammer and trigger/disconnector pin3 come out from the right to the left. Remove the hammer first, then the trigger/disconnector. The selector comes out fram the right tD the left. Td remove, place it half way between the safe and the fire positions. Use a 1/B inch punch and knock it straight out of the receiver from the right side.
The selector detent plunger and spring 8re removed from the receiver by taking off the pistol grip.
You will most likely not need to disassemble the lower receiver any further.
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