CMMG Mk4LE OR 300 BLK Upper Receiver Group

$649.99
CMMG Mk4LE OR 300 BLK Upper Receiver Group is rated 5.0 out of 5 by 1.
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Caliber/Gauge
Description
Model Number
Quantity
Price & Availability
300 AAC Blackout
Carbine-Length
30BF85F/11082
Invalid quantity
$649.99
SKU: 1921147
Add to Cart
Caliber/Gauge
300 AAC Blackout
Description
Carbine-Length
Model Number
30BF85F/11082
300 AAC Blackout
Carbine-Length Description, 1921147 Thumbnail...
Caliber/Gauge
300 AAC Blackout
Description
Carbine-Length
SKU
1921147
Model Number
30BF85F/11082
Online Availability
Price
$649.99
Quantity :
Invalid quantity
Add to Cart

The CMMG Mk4LE OR 300 BLK Upper Receiver Group is chambered for the 300 AAC Blackout (7.62x35mm) cartridge. It features a 16", M300 profile, 4140 chrome-moly steel barrel. A salt bath nitrided finish is applied to the barrel inside and out for improved wear, abrasion, and corrosion resistance. The Mk4LE comes with an M4 hand guard, and a railed gas block. There is no front sight to interfere with the sight picture when using tactical sights attached to the receiver's rail. The barrel of the CMMG Mk4LE OR 300 BLK Upper Receiver Group has a 1:7" twist, and the muzzle utilizes an A2 compensator with a 5/8"-24 thread.
Manufacturer model #: 30BF85F.

  • Chambered for the 300 AAC Blackout
  • 4140 chrome-moly steel barre
  • Salt bath nitrided finish
  • M4 hand guard
  • Railed gas block
Web ID: 1411191047