Bushmaster Square Drop 90907 Complete Specs and Full Gun Specifications

Available in 5.56 NATO and 300 AAC Blackout with 10", 9" and 7" barrel lengths 4150 chrome-moly steel barrel, FNC treated for maximum durability and longevity Mil Std upper & lower SquareDrop rail for free-floated accuracy and accessory mounting ease SB tactical arm brace Improved trigger control with ALG defense fire control group AAC SquareDrop and Blackout flash hider 30 round magazine capacity