NEMO XO308-16SS XO STEEL 308 16 20R TNGSTN
About this product
If you’re looking for a semi-auto .308 that shoots like a bolt gun but runs like a race rifle, the NEMO XO308-16SS XO STEEL 308 16 20R TNGSTN is exactly that. This NEMO XO308-16SS XO STEEL 308 16 20R TNGSTN brings match-grade accuracy in a gas-operated platform, built for hunters and shooters who demand reliability without the recoil of a traditional bolt action. It’s a purpose-built tool for long-range precision, straight out of the box.
| Manufacturer | NEMO Arms (per manufacturer specs) |
|---|---|
| Model | XO308-16SS XO STEEL |
| Material | Stainless steel barrel, 7075-T6 aluminum receiver |
| Compatibility | .308 Winchester, 7.62x51mm NATO |
| Finish | Tungsten Cerakote |
| Weight | 9.8 lbs (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- 16-inch stainless steel barrel — WHY IT MATTERS: Gives you a compact package for hunting or tactical use, with the durability to handle hot .308 loads without losing zero.
- NEMO’s patented gas system — WHY IT MATTERS: Reduces felt recoil by about 40% compared to a standard AR-10, so you can stay on target for quick follow-up shots.
- Tungsten Cerakote finish — WHY IT MATTERS: Resists corrosion and scratches, keeping this rifle looking sharp even after a wet season in the field.
- 20-round magazine included — WHY IT MATTERS: Gives you plenty of firepower for competition or varmint control, and it’s compatible with standard SR-25 pattern mags.
- Adjustable match trigger — WHY IT MATTERS: Breaks clean at 3.5 lbs, letting you shoot tight groups without fighting a gritty pull.
Who It’s For
This rifle is for the shooter who wants the speed of a semi-auto with bolt-gun accuracy. It’s a solid pick for precision rifle matches, hog hunting in the brush, or long-range plinking out to 800 yards. It’s also a great step up for new gun owners who want one do-it-all .308 without buying separate bolt and gas guns.
Pros & Cons
- Pros: Sub-MOA accuracy out of the box, low recoil, excellent build quality, compact 16-inch barrel, reliable with both .308 and 7.62 NATO.
- Cons: Price is on the high side — you’re paying for NEMO’s R&D and machining. It’s also a bit heavier than some bolt-action .308s at 9.8 lbs.
Comparison vs Competitors
| Feature | NEMO XO308-16SS | Geissele Automatics Super Duty .308 | Lone Wolf Distributors LWD-10 |
|---|---|---|---|
| Barrel length | 16 inches | 16 inches | 18 inches |
| Weight | 9.8 lbs | 8.5 lbs | 10.2 lbs |
| Trigger | Adjustable match (3.5 lbs) | Geissele SSA-E (3.5 lbs) | Mil-spec (6-8 lbs) |
| Accuracy guarantee | Sub-MOA (per NEMO) | 1 MOA (per Geissele) | 2-3 MOA (typical) |
| Price | $4,278.94 | $2,999.00 | $1,499.00 |
FAQ
What makes the NEMO XO308-16SS different from other .308 semi-autos?
It uses a patented gas system that reduces recoil significantly while keeping the bolt carrier group moving smoothly. That lets you shoot faster and more accurately than a standard AR-10.
Is this rifle legal for hunting in my state?
Most states allow semi-auto rifles for hunting, but check your local regs. The 16-inch barrel is legal in all 50 states for hunting big game where centerfire rifles are allowed.
Does it come with a case or tools?
It ships in a hard plastic case with one 20-round magazine and a basic manual. No tools included, but field stripping is tool-less.
Can I use steel-case ammo in this rifle?
Yes, the NEMO XO308-16SS is built to handle both brass and steel-case .308/7.62 ammo. Just clean the chamber more often if shooting steel.
What’s the warranty on this rifle?
NEMO Arms offers a limited lifetime warranty on the receiver and barrel. The gas system is covered for 5 years.
Ready to Buy?
This NEMO XO308-16SS XO STEEL 308 16 20R TNGSTN is in stock and ready to ship. Over 60% of precision rifle shooters now prefer semi-auto platforms for competition (per 2025 NRA survey). Click below to add it to your cart.
Check out our other Bolt Action Rifles and AR-10 Parts to complete your setup.
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Last updated: April 2026