Odin Works 6.5 Grendel AR 15 Barrel 20″ DMR Rifle with BCG


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Odin Works Atlas Compensator for 6.5 Grendel - 5/8x24 - AT3 Tactical

Odin Works Atlas Compensator for 6.5 Grendel - 5/8x24


Guaranteed Quality & Accuracy For Your DMR

This 20″ Designated Marksman Rifle (DMR) heavy profile (.850 behind the gas block, .745 in front) is made from 416R stainless steel. It features 1:8″ button rifling, is hand lapped, and has M4 feed ramps. Odin Works guarantees 1 MOA accuracy with this barrel.

All DI barrels include stainless steel tunable gas blocks.


  • Profile: DMR Heavy Profile (.850 behind gas block, .745 in front)
  • Length: 20”
  • Gas Placement: Rifle
  • Rifling: Button 8 twist
  • Weight: 2.66 lbs
  • Made from 416R Stainless Steel
  • Hand Lapped
  • M4Feed ramps
  • 5/8-24 Threading
  • 1″ MOA Guaranteed
  • SAAMI Spec Chamber
  • .750 Gas Block included
  • Bolt Carrier Group included- type 2 6.5 Grendel bolt face


Manufacturer Part Number B6520RTGBCG
UPC 857392006574
Caliber 6.5 Grendel
Finish Stainless
Fluted N
Length In Inches 20
Other Features: Rifle Length Gas Placement, Dmr Profile (Heavy Barrel), 6.5 Grendel Bolt Carrier,
Sights N
Other Features2: Includes Tunable Low Profile Gas Block
AR-15 Accessories Y
Dimension 3.45 X 3.70 X 25.45
Height 3.45
Width 3.7
Length 25.4500
Prop65warningcode A12



Caliber6.5 Grendel Type II
Barrel Length20 inches
Barrel Twist Rate1:8 inches
Barrel Material416 Stainless
Muzzle Threads5/8/2024
Barrel FinishStainless
Gas Block Size.750″ Gas Block
Barrel ProfileDMR
Barrel Gas SystemRifle
Gas Block Journal Length1.9 inches
Barrel ExtensionM4
Weight42.56 ounces

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

ODIN Works Lifetime Warranty

At ODIN Works your satisfaction is our commitment. We firmly stand behind our products and craftsmanship so If your ODIN Works product is found to be defective, we will repair or replace it free of charge for the life of the part.

The ODIN Works Lifetime Warranty does not apply if the product has been found to be misused, modified, or damaged.

*This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

For claims, please request an RMA.

For any questions or concerns regarding service and/or repairs, please contact us at the details below:

Contact Details:

  • Telephone: 1-208-906-1405

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.