Barnaul Steel Poly Coated Rifel Ammunition .300 AAC Blackout 145gr FMJ 1985 fps 20/ct

A .300BLK subsonic cartridge is a heavy, lower-velocity round perfect for pairing with a suppressor. Using subsonic cartridges with a suppressor helps to eliminate the “crack” that is inherent with supersonic cartridges, reducing noise levels down to a safer volume.