Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 10.5 in RA-MK1-10.5-PU-BLK
$550.00
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Description
Rainier Arms Ruc Pro Mk1 5.56 Nato Partial Upper Receiver Black 10.5 in RA-MK1-10.5-PU-BLK. Bringing the highest quality parts to the market while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas...
