B&T APC300 Pro 300 Blackout, 10.4″ Barrel, Black, Flash Hider, 30rd The APC300 shares all the same dialed-in ergonomics, handling and modularity features and benefits that has made the APC9 so popular but chambered in the versatile 300BLK cartridge. The benefits of being able to fire both super and subsonic loads of differing energy levels, [...]