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Diamondback Firearms Item Number: 65M18M50B8R
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AR-15 Barrel
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Caliber: 6.5 Grendel
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18″ 4150 Chrome Moly Steel
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Medium Profile
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Button Rifled, 1:8″ Twist
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M4 Feed Ramps
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Threaded 5/8×24
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Mid-Length Gas System
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Black Nitride Finish
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