SKU: CSSI|CA55DC70A

CMMG Barrel Sub-Assm 16.1inch MT 4140CM SBN 5.56mm

Perfect for building your custom AR15 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.

  • 16.1?
  • Medium Taper Profile
  • 4140 Chrome Moly
  • Salt Bath Nitride Finish inside and out
  • 1:7 Twist
  • 5.56×45 NATO Chamber
  • Threaded 1/2-28
  • Midlength gas port
  • .750? Gas Journal

$213.87

In stock

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Customer Reviews

Rated 5 out of 5

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Rated 5 out of 5

“A review from a customer who benefited from your product. Reviews can be a highly effective way of establishing credibility and increasing your company's reputation.”

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