The NEMO XO Steel in .308 Win (MPN XO30816SS) is a compact semi-automatic AR-platform carbine built around a 16-inch Bartlein blank barrel, giving shooters a maneuverable .308 platform for CQB, hunting, and long-range work alike. NEMO pairs the barrel with a Geissele Super Dynamic Enhanced two-stage trigger and NEMO’s proprietary recoil-reducing bolt carrier, plus a full-length M-LOK handguard for accessory mounting. Among semi-automatic rifles in the rifle lineup, the XO Steel favors shooters who want a lightweight, accurate .308 AR that still carries like a carbine.

Key Specifications

• Chambered in .308 Win (7.62×51 NATO).
• Rate of twist is 1-in-8-inch.
• Runs a semi-automatic AR-pattern action, not a bolt gun.
• The 16-inch Bartlein blank barrel keeps the carbine short and maneuverable.
• Feeds from a 20-round Magpul P-Mag, for a 20+1 on-hand capacity.
• Includes a Geissele Super Dynamic Enhanced two-stage trigger for a crisp break.
• The ambidextrous safety selector suits both left- and right-handed shooters.
• The barrel measures 16 inches.
• The receiver is finished in tungsten anodizing for durability.
• Ships with NEMO’s DC-1 titanium muzzle brake to manage recoil and muzzle rise.

Frequently Asked Questions

Is this a bolt-action or semi-auto rifle? It’s a semi-automatic AR-platform carbine, not a bolt gun.

What trigger does it use? A Geissele Super Dynamic Enhanced (SD-E) two-stage trigger.

What magazine does it feed from? A 20-round Magpul P-Mag, for 20+1 on hand.

Buy the NEMO XO Steel .308 Win

A precision-tuned semi-auto .308 carbine built for speed and accuracy in one lightweight package. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.