AR-15 9mm Colt Mag Block Lower Receiver with Colt Buffer and Spring near Bellevue, Seattle, WA

For sale is a complete lower receiver that has been drilled to be used with 9mm colt mags. The lower was drilled by West Coast Armory in Bellevue. Colt mag block. Colt heavy buffer and spring. 1 colt magazine included. Great lower receiver for your future pistol build