NEMO Arms Omen

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NEMO Arms Omen Gun Stats

NEMO Arms Omen

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The OMEN Watchman is the world's first viable, reliable, and accurate 300 WM semi-auto platform. Built for ultra-long-range applications, the Watchman makes precision shooting at extended ranges a breeze. At the Watchman’s core is a 24” Proof Research carbon fiber barrel, which is chambered in NEMO’s facility to ensure optimal accuracy performance. Extremely low recoil comes thanks to our own patented recoil reduction system which you won’t find anywhere else. This, combined with comfortable ergonomics gives the shooter confidence to shoot better than ever before. You must shoot it to believe it. The Watchman provides an exceptional shooting experience, allowing the shooter to perform at levels never before imagined. 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 NEMO dual chamber compact muzzle brake 6AL-4V titanium 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 High Pressure bolt 9310 heat treated Cryo’d shot peened MPI Nickel Boron coated Tool steel extractor heat treated IONBOND coated Titanium through drilled takedown and pivot pins Ambidextrous safety selector Tool steel side charging handle Ionbond coated Geissele Super semi-automatic enhanced (SSA-E) two stage trigger First 2.3lbs Second 1.2lbs MAGPUL MIAD grip MAGPUL PRS adjustable rifle stock NEMO 14 round magazine with aluminum follower

NEMO Arms Omen Specs

1 Brand

2 Category

Technical Data


.300 Winchester Magnum





Gun Type

Assault rifle

NEMO Arms Omen Ballistics

.300 Winchester Magnum Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 -0 3026 3517 0 0
50 -0.4856 2912 3256 0 50
100 -2.0095 2800 3012 0 103
150 -4.61 2691 2781 0 158
200 -8.4278 2584 2565 0 215
250 -13.5874 2480 2362 0 274
300 -20.1885 2379 2174 0 336
350 -28.1002 2281 1998 0 400
400 -37.9783 2186 1835 0 467
450 -49.3432 2094 1683 0 537
500 -62.9638 2004 1542 0 610

How much is a NEMO Arms Omen worth?

In 2023 a new or used NEMO Arms Omen value varies depending on supply and demand. In the last 12 months there is great demand for a NEMO Arms Omen and most rifles. The Price for a NEMO Arms Omen has increased in cost by $0.00 in 2023 compared to 2022.

Estimated New and Used Values for a NEMO Arms Omen Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $3,070.07 $4,014.70 $4,723.18
Excellent $2,833.91 $3,778.54 $4,250.86
Very Good $2,597.75 $3,778.54 $4,250.86
Good $2,361.59 $3,542.39 $4,014.70
Fair $1,653.11 $3,070.07 $3,778.54
Poor $1,180.80 $2,361.59 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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