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CMM MK4 MR 4140CM 5.56 12.5
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Item : 499978
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SKU : 499978
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Model :
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UPC : 815835016221
$199.95
$158.03
Free Shipping!
The CMMG 55DDF0A CMM MK4 MR 4140CM 5.56 12.5. Barrel Sub-Assm, 12.5 MR 4140CM SBN, 5.56mm ### From the manufacturer Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced. * 12.5 * Multi Role Profile * 4140 Chrome Moly * Salt Bath Nitride Finish inside and out * 1:7 Twist * 5.5645 NATO Chamber * Threaded 1/2-28 * Carbine length gas port * .750 Gas Journal
| Manufacturer | Cmmg |
| UPC | 815835016221 |
| SKU | 499978 |
| Weight | 2.2500 |