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11.5" / 12"
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AR-15 5.56 NATO 11.5" 4150 CMV Nitride Barrel / 1/2x28 / Car-LengthChambered in 5.56 nato (also accepts .223 rounds).Made from 4150 CMV nitride finishGovernment profileCarbine length gas system .750 diameter gas block1/2x28 thread1x7 twist rateComes as seen in picture with barrel extension and exten..AR-15 5.56 NATO 11.5" 4150 CMV Nitride Barrel / 1/2x28 / Car-Length...$99.95$129.95 -
AR-15 5.56 NATO 12.5" Carbine, M4 barrel, 1-8 twist, NitridePROFILE: GOVTGAS SYSTEM: CARBINE LENGTHTWIST RATE: 1:8GAS BLOCK: .750"MATERIAL: 4150VWEIGHT: 19.3OZ.MUZZLE: 1/2-28 THREADFINISH: BLACK NITRIDELENGTH: 12.5" ..AR-15 5.56 NATO 12.5" Carbine, M4 barrel, 1-8 twist, NitridePROFILE...$129.95 -
Moriarti AR-15 5.56 NATO 10.5" 4150 CMV Barrel, Gov't Profile, 1X7, Nitride Chamber - 5.56 NATO Barrel Thread - 1/2" x 28 Barrel Twist - 1 x 7 Barrel Steel -&nbs..Moriarti AR-15 5.56 NATO 10.5" 4150 CMV Barrel, Gov't Profile...$99.95$149.95