CMMG Endeavor MK4 22 ARC Upper Group 28B3D0C-CT
CMMG

CMMG Endeavor MK4 .22 ARC 20in Coyote Tan Upper Receiver Group (28B3D0C-CT)

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SKU:
CMMG-28B3D0C-CT
UPC:
810148627416
MPN:
28B3D0C-CT
  • CMMG Endeavor MK4 .22 ARC 20in Coyote Tan Upper Receiver Group (28B3D0C-CT)
  • CMMG Endeavor MK4 .22 ARC 20in Coyote Tan Upper Receiver Group (28B3D0C-CT)
$777.27
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Description

  • Zeroed AR15 ambi charging handle
  • Zeroed AR15 polymer dust cover
  • Zeroed muzzle brake 5.56mm
  • Brings 22-250 performance to the lighter-weight AR15 (MK4) platform
  • Includes the bolt carrier group

Endeavor is CMMG's full-length rifle series, and the Endeavor MK4 Complete Upper Group is absolutely superb for long range hunting and target shooting. Part of CMMG's Mk4 lineup, this upper is compatible with CMMG's Mk4 lower receiver as well as any standard mil-spec AR-15 lower receiver. For top tier accuracy, the Endeavor Mk4 upper is fitted with a 20-inch barrel made from 4140 chrome moly steel and with a nitride finish for durability. A CMMG EML15 handguard features M-LOK slots at the 3, 6, and 9 o'clock positions for easy addition of lights, bipods, and more.

Instead of having a full length Picatinny top rail, the EML15 features Picatinny slots only at the front and rear of the handguard to remove additional weight. Additionally, an ambidextrous charging handle makes it easy to charge the upper with one hand and because this upper includes a bolt carrier group, all you need to do is drop the upper onto a compatible lower and it is ready for action. Ideally suited for longer range shooting or general purpose use, the Endeavor Mk4 complete upper might be the perfect component for your next AR build project.

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Warranty Information

Platform MK4
Caliber .22 ARC
Barrel Length, in 20"
Operating System Direct Impingement
Barrel Twist 1:7
Barrel Contour MT
Barrel Material 4140CM, SBN
Muzzle Device CMMG ZEROED Muzzle Brake
Muzzle Thread 1/2x28
Gas Port Location Rifle
Gas Block Adjustable 0.750"
Upper Receiver Billet 6061 T6 Aluminum
Hand Guard CMMG EML15 M-LOK
Finish Cerakote
Charging Handle CMMG ZEROED Ambi
Length, in 28.9"
Weight, lbs 4.7
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Additional Information

Activity:
Shooting
Barrel Length:
20in
Caliber:
.22 ARC
Color:
Coyote Tan
Completion:
Complete
Finish:
Cerakote
Firearm Fit:
AR-15
Gas System:
Rifle Length
Model:
Endeavor
Product Type:
AR Uppers
Submodel:
MK4
Thread Pitch:
1/2x28
Twist Rate:
1:7
Serialized Item:
F
Bestselling:
F
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