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300 AAC Blackout
From its humble origins in the U.S. military, the 300 Blackout has grown in popularity as more customers recognize its versatility and extreme performance. Moriarti Arms ® offers a wide variety of AR builds, assemblies, parts and more, chambered in the versatile 300 blackout cartridge.
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AR-15 300 AAC 14.5" Blackout Ballistic Advantage keymod tactical pistol kit. This kit contains all components to complete your AR-15 300 BLK build. The kit comes WITHOUT 80% lower receiver. All options and modifications to your kit are available on top of this page. All components are Mil Spec..AR-15 300 AAC 14.5" Blackout Ballistic Advantage keymod tactical pi...$429.95$549.95 -
AR-15 300 AAC BLK 10.5" Nitro-Met Keymod Upper Assembly with Socom Style Brake -is a perfect addition to your AR-15 build. All you need is a case of ammo to change your standard AR 5.56 to a new 300 Blackout upper.Assembly Features:Chamber - 300 AACBarrel Twist - 1x7Barrel Thread ..AR-15 300 AAC BLK 10.5" Nitro-Met Keymod Upper Assembly with Socom ...$249.95$399.95 -
AR-15 300 AAC BLK 7.5" KEYMOD UPPER ASSEMBLY WITH FLASH CONEAction: Semi-auto Gas System: Pistol Length Gas System Chamber: 300 AAC Twist Rate: 1/7 Muzzle Device: Flash Cone Can Barrel: 7.5" 300 AAC M4 hbar contour, phosphate finish, heat tr..AR-15 300 AAC BLK 7.5" KEYMOD UPPER ASSEMBLY WITH FLASH CONEAction:...$249.95$349.95 -
Multi Port CompensatorFlat side, tanker style3 Side Porting Slots and 2 Top Porting Holes To Reduce Muzzle Climb And RecoilCrush Washer IncludedAll Steel Construction, Black Nitride Coated.308 Cal / 300 AAC Blackout / 7.62x395/8 x 24 ThreadsUSA made ..Multi Port CompensatorFlat side, tanker style3 Side Porting Slots a...$89.95 -
AR 5/8x24 Noveske KX5 Flash Suppressor Pig Black. Made in Grants Pass,Oregon USA. Heat-Treated CM Construction Nitride Finish 4.5 ounces 1.2 inch Dia 3.25 inch OAL This KX5 may be used on: .308, 300 BLK, 6.8 SPC, 7.62mm = 5/8x24 The Noveske KX5..AR 5/8x24 Noveske KX5 Flash Suppressor Pig Black. Made in Grants Pa...$169.95 -
AR SlimLine MicroCone Flash 5/8x24Solid T6 Aluminum Body 5/8 x 24 Thread .308/ 300 AAC Blackout Cal Pushes Flash Forward Micro VersionMade in USA ..AR SlimLine MicroCone Flash 5/8x24Solid T6 Aluminum Body 5/8 x...$49.95