CMMG Resolute MK4 Complete AR-15 Upper Receiver - .350 Legend - 16.1"

The CMMG Resolute MK4 Complete AR-15 Upper Receiver in .350 Legend transforms a compatible mil-spec lower into a semi-automatic hunting rifle, pairing a 16.1" Chrome Moly barrel with a CMMG ZEROED muzzle brake for softer-recoiling follow-up shots on deer.

Features:

• 16.1" 4140 Chrome Moly barrel, MT contour, salt bath nitride finish, 1:16 twist
• Carbine-length direct impingement gas system, 0.750" non-adjustable gas block
• CMMG ZEROED muzzle brake, 1/2x28 thread
• Billet 6061-T6 aluminum upper receiver, black Cerakote finish
• CMMG EML15 M-LOK handguard
• CMMG ZEROED ambidextrous charging handle
• Polymer dust cover
• Bolt carrier group and charging handle included

The 1:16 twist is matched specifically to .350 Legend's bullet weights for consistent accuracy, and the CMMG ZEROED muzzle brake cuts felt recoil for faster, more controlled follow-up shots in the field. At 4.0 lbs and 25" overall, this billet upper stays light and maneuverable for still-hunting or stand hunting alike.

The ambidextrous ZEROED charging handle and polymer dust cover round out a build that's ready to mount and hunt as soon as it's paired with a lower.

CMMG designs and manufactures its rifles and components in Fayette, Missouri, engineering platforms built to expand what the AR-15 can be chambered in and how it runs.