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Blackfin AR15 MCRR Rifle UPPER -Maritime Corrosion Resistant
AR15 Rifle Blackfin Maritime Corrosion Resistant Rifle Upper Features
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- SaltWater Arms MCRR AR15 Rifle Upper with Corrosion resistant features
- Barrel Profile: AR-15 16" 416R Stainless Steel Contour Barrel,
- 5.56 NATO, Mid Length Gas System w/ 1:8 Twist
- Muzzle Thread: 1/2-28
- Caliber 5.56 NATO
- Barrel Length: 16"
- Diameter at Gas Block: .750
- Gas Block Type: Low profile stainless steel
- Muzzle Brake Type: Stainless steel muzzle brake with crush washer
- Receiver : AR 15 Upper 6061 Billet Aluminum
- Hand Guard Type:12”" KMX Lightweight Rail
- Bolt Carrier Group : Nickel Boron ,stainless steel
- Bolt Carrier Profile: Full-Auto
- All pins ,screws ,detents Stainless steel, springs corrosion resistant
SaltWater Arms MCRR Blackfin AR15 rifle Upper, Semi auto .556 / 223. These rifle uppers are built with Maritime Corrosion Resistant features like Stainless Steel barrel and muzzle brake. Stainless Steel pins, screws, detents and corrosion resistant springs. Stainless steel / nickel boron full auto bolt carriers. If you are looking for a AR15 for marine exposure of high humidity Coastal areas this may be the rifle upper for you!
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