Will pay top dollar for a 1990's/ early 2000's Colt "AR15 A2" marked lower receiver with full fence. Manufacturing era is easily identified by the charcoal gray finish that preceded the current jet black anodizing. Large (.170) hammer and trigger pin size, screw and collet pivot pin configuration, or single sided sear block are OK; NO large rivet / dual-sided sear blocks or SP1 slab side lowers wanted. Thank you, and Godspeed.