New Evolution Military Ordnance NEMO Omen Watchman 2.0 .300 WIN MAG Rifle

SOLD FOR: $3,525.00

LSB#: WY250418ML001

Make: Nemo Arms (New Evolution Military Ordnance)

Model: Omen Watchman 2.0

Serial Number:  OMN2A0003

Year of Manufacture: Modern 

Caliber: .300 Win Mag

Action Type: Semi-Automatic, Direct Impingement

Markings: The left side of the receiver is marked “NEMO / OMN2A0003/ MODEL: OMEN / MULTI-CAL”, “NEMO ARMS / KALISPELL, MT / U.S.A.”, “SAFE FIRE”.  The left side of the upper is marked “NEW EVOLUTION MILITARY ORDNANCE”, “Interfecti soli finem belli viderunt” – Plato.  Both sides of the trigger are marked “G”. The chamber is marked “NEMO / 300 WIN MAG / 1:8T / 416 SS”. The right side of the receiver is marked “OMEN”, “FIRE SAFE”.  Both sides of the handguard are marked “NEMO”.  The right side of the upper is marked “20 MOA RAIL” and “.300 WIN MAG”.  The right side of the BCG is marked “NEMO ARMS”. Both sides of the buttstock are marked “MAGPUL INDUSTRIES CORP / PRS CAGE 1LX50”. 

Barrel Length: 24” Carbon Fiber Wrapped Proof Research Barrel. 26” with B1 Tri-lug suppressor ready muzzlebrake.

Sights / Optics: The top of the rifle has a picatinny rail for sight and optic options. The rear of the rail is mounted with a Sniper Tools Design Co. Angle Cosine Designator.

Stock Configuration & Condition: The buttstock is a Magpul PRS stock with adjustable cheek piece, adjustable LOP, sling bar, rubber buttpad, and monopod rail.  The pistol grip is a textured rubber overmolded Hogue grip.  The handguard is a 14.5 inch user configurable rail with picatinnies installed on the side and bottom positions with an Accu-Tac Adjustable Bipod mounted. The LOP measures 15” from the front of the trigger to the back of the buttpad extended. The stock rates in Excellent condition with no handling wear. Has Geissele trigger.

• High Pressure bolt; 9310 heat treated Cryo’d shot peened MPI Nickel Boron coated.
• Patented recoil reduction carrier 8620 heat treated Nickel Boron coated.
• Geissele Super semi-automatic enhanced (SSA-E) two stage trigger.
• NEMO dual chamber compact muzzle brake
• NEMO® upper and lower receiver set billet 7076-T6 Hard Anodize Tiger Stripe
• 15” 6061 M-LOK modular rail 1.83” internal diameter steel QD mounts rotation limited
• Lightweight heat dissipating barrel nut 7075-T6
• 7075-T6 7 rifle length “Carrier Cradle” anti-tilt receiver extension Nickel Boron coated
• Tuned steel faced buffer system
• Chrome silicon recoil spring
• PROOF Research 24” Carbon fiber wrapped barrel 1:8 twist .300 win-mag chamber
• 4 position adjustable gas system for suppressed and un-suppressed use
• Severe duty threaded stainless gas tube extended length gas system
• PATENTED recoil reduction carrier 8620 heat treated Nickel Boron coated
• Tool steel extractor heat treated IONBOND coated
• Tool steel side charging handle Ionbond coated
• MAGPUL PRS adjustable rifle stock
• Bullet Button Magazine Release.

Magazine Quantity and Condition: Two Nemo Arms 14rd .300 Win Mag Magazines in Excellent condition.

Type of Finish: Black/Green Hard Anodized Tiger Stripe

Finish Originality: Original

Bore Condition:  The bore is bright and the rifling is sharp. There is no visible erosion in the bore.

Overall Condition: This rifle retains about 99% of its hard anodized finish. There is no finish loss. The screw heads are sharp. The markings are clear. Overall, this rifle rates in about Excellent condition. 

Mechanics: The action functions correctly. We did not fire this rifle. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance requirements. 

Box, Paperwork & Accessories: This rifle comes with its factory range bag, total of two magazines and owner’s manual.

Our Assessment: The NEMO Arms Omen Watchman 2.0 is an elite semi-automatic rifle engineered to harness the full potential of the .300 Winchester Magnum in an AR-platform design. Featuring a 24” PROOF Research carbon fiber wrapped barrel, Geissele SSA-E trigger, and NEMO’s patented recoil reduction carrier system, this rifle delivers magnum performance with reduced felt recoil and match-grade precision. Every component is premium.  The gas system is optimized with a 4-position adjustable block for both suppressed and unsuppressed use, allowing fine-tuning for a variety of mission profiles or shooting disciplines. Fit, finish, and materials throughout the rifle reflect its professional-grade intent and meticulous engineering.

With a high-pressure tested bolt, nickel boron-coated internals, and a sleek hard anodized Tiger Stripe finish, the Watchman 2.0 isn’t just a precision instrument—it’s a statement piece for shooters who demand the best. This example shows virtually no use, retaining 99% of its original finish and including two proprietary 14-round mags, factory manual, and its fitted range bag. With limited-production status, this is an outstanding opportunity for collectors of modern precision arms, long-range competitors, or tactical professionals looking to bridge .300 Win Mag power with AR-style ergonomics and control. Please see our photos and good luck on your bid! – L.S.