ORDER CALIBER WEIGHT LENGTH BARREL LENGTH MUZZLE BARREL
90216 5.56 NATO/223 Rem 6.7 lbs 32.5" 16" 1/2 x 28 4150 chrome-moly steel w/chrome-lined bore/chamber
90289 5.56 NATO/223 Rem 6.7 lbs 32.5" 16" 1/2 x 28 4150 chrome-moly steel w/chrome-lined bore/chamber
90391 5.56 NATO/223 Rem 6 lbs 32.5" 16" 1/2 x 28 4150 chrome-moly steel w/chrome-lined bore/chamber
90212 5.56 NATO/223 Rem 7.0 lbs 35" 16" 1/2 x 28 4150 chrome-moly steel w/chrome-lined bore/chamber
90280 5.56 NATO/223 Rem 7.3 lbs 35" 16" 1/2 x 28 4150 chrome-moly steel w/chrome-lined bore/chamber
90297 7.62/39mm 6.57 lbs 32.75" 16" 5/8 x 24 4150 chrome-moly steel w/chrome-lined bore/chamber
90298 6.8mm REM SPC 6.57 lbs 32.75" 16" 5/8 x 24 4150 chrome-moly steel w/chrome-lined bore/chamber
90831 5.56 NATO/223 Rem 8.2 lbs 35" 16" 1/2 x 28 4150 chrome-moly steel w/chrome-lined bore/chamber


PLEASE NOTE: A Federal Firearms License is REQUIRED for the purchase of any Complete Weapon or Lower Receiver. Your order will not be processed without it. See the Dealer Locator for your nearest Bushmaster Dealer. Any other firearms parts or accessories shown in this website may be purchased directly.