General NFA Information, Classified Ads & Discussion Boards:
www.subguns.com

.300 BLK Rifles
http://daemondefensellc.com

.375 SOCOM Uppers and Parts
www.tromix.com

.458 SOCOM Uppers and Parts
www.tromix.com

.450 Bushmaster Uppers and Parts
www.tromix.com

.458 SOCOM and .375 SOCOM Ammunition

Black Butterfly Ammunition Store
Mail: 3620 Pelham Road
C/O UPS STORE PELHAM ROAD Locked Box #2
Greenville, SC 29615
877-533-5527
https://www.blackbutterflyammunition.com