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AR-15 16" M4 Barrel Beaver Creek Armory 5.56x45mm Chamber 1:9" Twist Black Oxide Finish

Beaver Creek Armory
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Beaver Creek Armory's 16" 5.56 M4 carbine barrel has a 1:9" twist and is made from A.I.S.I. 4140 chrome-moly steel with a black oxide finish. Features a 1/2x28 threaded muzzle, and does not include a front sight/gas block assembly or a flash hider. Barrel is not chrome lined. 
Total number of Reviews: 3

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2.0 5
"I bought one of these barrels. Once I assembled the upper reciever for the rifle I was building I found out when I was head spacing it that I now need to take it to a gun smith due to improper head space to safely fire the rifle."
1.0 5
"The barrel indexing pin on the barrel extension was not correctly installed, It was 3 mm to the left not allowing the bolt to even seat once assembled. DO NOT BUY THIS ITEM!"
5.0 5
"I read the previous reviews on this barrel, and decided, what the heck, I am a machinist, I can fix what ever is wrong with it, and ordered one. When I received it I was very well satisfied with my purchase. I found none of the defects previously complained about. I used this barrel to build a piston driven AR-15 and it assembled wonderfully, and fuctioned flawlessly. I would not hesitiate to buy another, and just might, to store away for a future build."