Rainier Arms Ruc Pro Mk2 5.56 Nato Partial Upper Receiver Black 11.5 in RA-RUC-PRO-MK1-RS-115-PU. 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...

In stock
ShipAmount $0.00
RevType 2
Manufacturer Rainier Arms
Sku RARUCPROMK1RS115PU
Identity 24654381649