[RMK8]

what is the first thing you will need to look on used ar-15 full auto? check the black powder dirt in clamber? gas piston?

 

[TacticalGenius]

Check over the whole rifle, look down the barrel, pull the handguards, check the chamber for cleanliness, wear and the like. Check the bolt face, is the firing pin shrouded? Are the gas rings okay on the bolt? Most of the stuff that is worn on a used AR is pretty easy to swap yourself.

 

[RMK8]

thanks. only if the dealer let me take the ar 15 apart and check.

 

[TacticalGenius]

If he won't let you fiddle with the rifle and disassemble it to check it, don't buy it.

 

[alaj70]

If he won't let you fiddle with the rifle and disassemble it to check it, don't buy it.

+1! TG is right.