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CMMG Product #57D880F

Barrel Sub-Assm, 8" MT 4140CM SBN, 5.7x28mm

PRODUCT #57D880F

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$274.95
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Product Restrictions

Expected to ship within 15-30 business days. AR Parts Notice - State/local restrictions may apply in CT, DC, IL, MA, NJ, NY, or WA. Customers must review our Shipping Policy prior to ordering.

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Barrel Sub-Assm, 8" MT 4140CM SBN, 5.7x28mm

Complete your AR pistol build with an 8" 5.7x28mm Radial Delayed Blowback™ barrel. Made from 4140CM, each barrel has a salt bath nitride finish for maximum durability and corossion resistance.
Bolt Carrier Group Compatibility: Radial Delayed Blowback barrels feature a unique barrel extension and require the use of the matching caliber RDB bolt carrier group.
**All NFA rules apply** See linked CMMG Resource article for more information.
All CMMG products are backed by our Lifetime Quality Guarantee. Learn More.

Specifications

Caliber 5.7x28mm
Operating System Radial Delayed Blowback
Barrel Length 8
Barrel Twist 1:9
Barrel Contour MT
Barrel Material 4140CM, SBN
Muzzle Thread 1/2 x 28
Gas Port Location N/A

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