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Nemo Arms - Omen Rifle

Nemo Arms Omen Match 2.0 .300 Win Mag AR - 14rd - 22" OMENMG2

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    (2) reviews

MSRP $5,699.99
Sale Price Add to cart to see price (Too low to advertise!)

Brand: NEMO Arms
Item Number: OMENMG2
Availability: Ships in 12-24 Months
Not Available In:   CA   DC   MD   MA   NJ   NY  

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Additional Magazines:
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Nemo Arms Omen Match 2.0 .300 Win Mag AR - 14rd: OMENMG2

The world's first 300 Win Mag AR! Equiped with a Billet Upper and Lower Receiver ( SF Tiger Stripe Anodize), NEMO 22” .300 Win Mag Match Grade Barrel, Geiselle SSA 2-Stage Match Trigger, Mako Sniper Stock, and much more!

The new Omen Match 2.0 now includes an adjustable gas block.


*Does not include Scope*


  • Adjustable Gas Block
  • Billet Upper and Lower Receiver, SF Tiger Stripe Anodize
  • NEMO 22” .300 Win Mag Match Grade Barrel
  • Geiselle SSA 2-Stage Match Trigger
  • Free Float Customizable Handguard With Removable Rail System In Black
  • Low Profile Gas Block
  • Nickel Boron Bolt Carrier Assembly
  • NEMO Side Charging Handle
  • NEMO PC Tornado Flash Hider
  • Mako Sniper Stock
  • Hogue Overmolded Pistol Grip In Black
  • KNS Anti-Rotational Trigger Pins
  • 2 NEMO 14 Round Mags
  • Tru-Spec Drag Bag
  • Owners Manual
  • 11 lbs.

Additional Information

Item Number OMENMG2
Action Semi-Auto
Operating System  
Caliber .300 Win Mag
Overall Length  
Trigger Type Geiselle SSA 2-Stage Match Trigger
Trigger Weight  
Barrel Length 22.0"
Number of Grooves  
Weight w/o Mag 11 lbs.
Magazine Capacity 14rd
Magazine Type NEMO
Accessory Rail Yes
Features 2 x NEMO 14 Round Mags, Adjustable gas block


The OMEN is optimized to use quality ammunition. Do not use ammunition that exceeds maximum chamber pressure recommended by SAAMI (Sporting Arms and Ammunition Manufacturers Institute). The maximum pressure is 64,000 PSI, Piezo measured.

The maximum COAL (Cartridge Over All Length) that can be used in the OMEN is up to 3.50 inches. You must check your chamber dimensions before loading ammunition beyond SAAMI length.

There are many different manufacturers of ammunition and loads for the .300 Win. Different ammunition, bullet weights and powder combinations will cause varying degrees of accuracy and performance of the rifle.

Lighter loads, and bullet weights may cause the rifle to not lock the bolt back on the last rounds. Lighter loads can be hot loads and could cause cycling issues, pierced or blown primers.

Really hot loads or heavy bullet weights may cause overgassing, pierced or blown primers.

Soft primers, or loose primers may cause blown or "dropped" or pierced or blown primers. The OMEN is designed to perform the best with military-grade hard primers.

Ammunition not to be used in the OMEN:

  • 150gr Ammunition
  • Hornady Superformance
  • Federal Fusion
  • Any ammunition that shows excessive pressure signs such as flattened primers, blown primers, pierced primers


If your ammunition is blowing or piercing primers, discontinue shooting. Completely fieldstrip and clean rifle. Replace firing pin if you have pierced primers. Use different ammunition.

Product Reviews (2)

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Customer Comments

1,000 Yard Marvel
I have wanted to get into long range shooting for a long time now and when I had the opportunity to shoot the Nemo Omen I jumped on the chance. The first thing that impressed me was the recoil or lack there of. I shot 30+ rounds through it and it really does have less felt recoil than any .308 I have ever shot. The recoil reduction bolt that Nemo uses performed perfectly. The Omen I shot also had the new .300 win mag compensator on it that helped to further reduce the recoil. I'm happy to say that coupled with a Leupold Mark 8 scope I was able to hit an 8" steel target at 1,000 yards in 6 shots (pretty amazing for a beginner). Together our group shot over 100 rounds through two different Omens and we had zero malfunctions. Overall I was very impressed with the Nemo Omen! Buy with confidence.

gun hoarder
Nice Gun
Very nice ordered micro sites had a little mix up on that but Rockwell followed through and took care of any problems.