.300 blackout upper only! Complete (no BCG or CH) I don’t know much about the 300 blackout but if you want to trade I’m willing to swap for a different caliber upper .send me your trades. Here is it built out and I’ll update later with more pictures if need be. Or just ask for pictures and when I’m home I can send them. Text me @210-550-0437. Be willing to meet in San Antonio