This is a Rock river arms upper with a 20" heavy 1/8 s/s barrel. It has a YHM rifle length free float quad rail and a quad rail gas block. It is attached to a new never fired YHM lower with a RRA LPK. It comes with a truglo 6-16x50 scope and 4 30rnd p-mags. I have put about 500 rounds through the upper. I will take $180.00 off the price with out the scope and mount. I would consider partial trades for a 9mm or a 40. Please call or TXT with any questions REDACTED.
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