BCM 11.5 upper. Midwest Industries quad rail and back up sight. Yankee Hill flash hider/mount. Lower is Aero Precision M4A1 clone. WOT forced reset trigger (2019 era). I had it tuned with machined parts, as it came with cast and I didn't trust that. Really only looking for 9mm PCC. I can add my other listing for the right trade if need be. Before the hate text, SBR is no longer a federal issue in indiana as of 10-9-2026.... 260301four555 with offers.