ABC RIFLE COMPANY AR-15 .300 AAC Blackout Pistol M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Olive Drab Green. The 7.5in 4140 chromoly barrel with a 1:8 twist chambered in .300 AAC Blackout delivers balanced performance and...
ABC RIFLE COMPANY AR-15 .300 AAC Blackout Pistol M-LOK Handguard Complete Upper Receiver w/BCG And Charging Handle Olive Drab Green. The 7.5in 4140 chromoly barrel with a 1:8 twist chambered in .300 AAC Blackout delivers balanced performance and...