The Nemo Arms OMEN .300 Win Mag AR rifle is a precision-engineered platform built for shooters who demand performance without compromise. Built on a billet 7075-T6 upper and lower receiver set finished in tungsten Cerakote, the OMEN delivers the same quality and attention to detail that defines Nemo's lineup—whether you're splitting the difference between a compact tactical build and a full long-range rig. The 22-inch 416R stainless steel barrel starts as a Bartlein blank and is rifled with a 1:8 twist and 5R profile, giving you the velocity sweet spot between shorter and longer configurations without sacrificing accuracy or manageability. At 11.2 pounds unloaded and 43.5 inches in overall length, the OMEN strikes a balance between portability and shootability for extended range sessions or field work.

Every component reflects Nemo's precision-rifle pedigree. The carrier features a proprietary recoil-reduction design, cryogenically treated and nickel-boron coated for reliability under sustained fire. A Geissele Super semi-automatic enhanced (SSA-E) two-stage trigger—2.3 pounds on the first stage, 1.2 pounds on the second—provides the crisp, predictable break serious shooters expect. The 4-position adjustable gas system runs tuned for both suppressed and unsuppressed ammunition, while the extended-length stainless gas tube and severe-duty construction handle heavy use without compromise. Titanium takedown and pivot pins reduce weight where it matters, and a tool-steel side charging handle keeps everything ambidextrous-ready.

Ergonomics and modularity round out the platform. The Magpul PRS adjustable stock keeps you locked in during long strings of fire, while the Magpul MIAD grip is proven and familiar. A 15-inch M-LOK rail with integrated QD mounts gives you room to mount optics, lights, and accessories without rail scatter. The compact titanium muzzle brake tames recoil while keeping the rifle's footprint reasonable. Every tuned component—nickel-boron carrier, cryo-treated bolt, IONBOND-coated extractor—is built to endure. Includes a 14-round aluminum-follower magazine.

The Nemo Arms OMEN .300 Win Mag AR rifle is a precision-engineered platform built for shooters who demand performance without compromise. Built on a billet 7075-T6 upper and lower receiver set finished in tungsten Cerakote, the OMEN delivers the same quality and attention to detail that defines Nemo's lineup—whether you're splitting the difference between a compact tactical build and a full long-range rig. The 22-inch 416R stainless steel barrel starts as a Bartlein blank and is rifled with a 1:8 twist and 5R profile, giving you the velocity sweet spot between shorter and longer configurations without sacrificing accuracy or manageability. At 11.2 pounds unloaded and 43.5 inches in overall length, the OMEN strikes a balance between portability and shootability for extended range sessions or field work.

Every component reflects Nemo's precision-rifle pedigree. The carrier features a proprietary recoil-reduction design, cryogenically treated and nickel-boron coated for reliability under sustained fire. A Geissele Super semi-automatic enhanced (SSA-E) two-stage trigger—2.3 pounds on the first stage, 1.2 pounds on the second—provides the crisp, predictable break serious shooters expect. The 4-position adjustable gas system runs tuned for both suppressed and unsuppressed ammunition, while the extended-length stainless gas tube and severe-duty construction handle heavy use without compromise. Titanium takedown and pivot pins reduce weight where it matters, and a tool-steel side charging handle keeps everything ambidextrous-ready.

Ergonomics and modularity round out the platform. The Magpul PRS adjustable stock keeps you locked in during long strings of fire, while the Magpul MIAD grip is proven and familiar. A 15-inch M-LOK rail with integrated QD mounts gives you room to mount optics, lights, and accessories without rail scatter. The compact titanium muzzle brake tames recoil while keeping the rifle's footprint reasonable. Every tuned component—nickel-boron carrier, cryo-treated bolt, IONBOND-coated extractor—is built to endure. Includes a 14-round aluminum-follower magazine.