If you need a long-range tool that’ll reach out and touch steel or coyotes at distance, the ArmaLite A10SBF2 AR-10 Super SASS II 7.62x51mm 20in 20+1 is built for work, not show. This is a semi-auto .308 battle rifle that’s been tuned by the factory to shoot tight groups and run reliably—suppressed or not. It’s the kind of rifle you’d trust to fill a freezer or hold a line on a windy ridge.
| Manufacturer | ArmaLite |
|---|---|
| Model | A10SBF2 Super SASS Gen II |
| Material | 7075-T6 aluminum upper and lower receiver (per manufacturer specs) |
| Compatibility | .308 Winchester / 7.62x51mm NATO magazines |
| Finish | Hard-coat anodized black |
| Weight | 12.5 lbs (empty, with stock) |
| Condition | New |
Key Features
- Adjustable Gas System — Dial it in for suppressed or unsuppressed fire. This keeps the bolt speed consistent, cuts recoil, and stops over-gassing so your brass doesn’t get beat up and your face doesn’t get blasted with gas.
- Magpul PRS Gen2 Adjustable Stock — You get a solid cheek weld and length-of-pull adjustment without needing a gunsmith. That means repeatable positioning shot after shot, especially when you’re prone behind a bipod.
- Two-Stage Precision Trigger — Breaks clean at around 4.5 lbs. The take-up is short and the wall is crisp, which lets you squeeze off shots without pulling the rifle off target.
- Rifle-Length Gas System — Slows down the bolt carrier cycle, reduces felt recoil, and improves reliability with heavy match ammo. This is the same setup used on precision gas guns that win matches.
- Ambidextrous Safety & Magpul BUIS — Lefties can run it without swapping parts, and the flip-up iron sights give you a backup zero that won’t snag on brush.
Who It’s For
This rifle is for the rancher who needs a single tool that pulls double duty: varmint control at 300 yards and deer at 600. It’s for the rural shooter who wants a semi-auto that doesn’t give up accuracy to a bolt gun. If you’re running patrol on a large property or competing in long-range tactical matches, the Super SASS Gen II handles the work without complaining.
Pros & Cons
- Pro: Factory-tuned adjustable gas system lets you run a suppressor without fiddling with buffer weights or springs.
- Pro: The 20-inch stainless steel barrel is free-floated and threaded 5/8×24—standard for .308 muzzle devices.
- Pro: Comes with a 20-round Magpul PMAG and a hard case, so you’re ready to shoot out of the box.
- Con: At 12.5 pounds unloaded, it’s a heavy rifle for carrying all day in the field. Not ideal for long stalks or climbing ridges.
How It Stacks Up
| Feature | ArmaLite Super SASS Gen II | Geissele Super Duty .308 | Lone Wolf Distributors LWD-10 |
|---|---|---|---|
| Barrel Length | 20 inches | 16 inches | 18 inches |
| Gas System | Adjustable, rifle-length | Fixed, mid-length | Fixed, rifle-length |
| Stock | Magpul PRS Gen2 | Geissele Super 42 buffer tube + SOPMOD | Mil-spec collapsible |
| Trigger | Two-stage precision (4.5 lbs) | Geissele SSA-E (3.5 lbs) | Mil-spec single-stage |
| Suppressor Ready | Yes, factory tuned | Yes, with adjustable gas block | No, needs aftermarket block |
| MSRP | $3,319.29 | $2,599 | $1,499 |
FAQ
Does this rifle come with a scope or optics?
No, it ships without optics. It does include Magpul MBUS flip-up iron sights for a backup zero. You’ll need to add your own scope or red dot.
Can I use 7.62x51mm NATO surplus ammo in this rifle?
Yes, it’s chambered for both .308 Winchester and 7.62x51mm NATO. The adjustable gas system helps cycle lower-pressure surplus loads reliably.
Is this rifle legal to hunt with in all states?
Most states allow semi-auto .308 rifles for big game, but check local regs. Some states restrict magazine capacity over 10 rounds for hunting. The included 20-round magazine is fine for target use.
How do I adjust the gas system for a suppressor?
Use a 3/32-inch hex key to turn the gas block screw. Start at the fully open position and close it in quarter-turn increments until the bolt locks back on an empty magazine. ArmaLite includes instructions in the box.
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Last updated: April 2026
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This ArmaLite A10SBF2 AR-10 Super SASS II 7.62x51mm 20in 20+1 is ideal for shooters looking to buy guns online with confidence. Built with precision engineering and tested performance, it’s a top-tier choice whether you're looking for home defense, sport shooting, or a trusted everyday carry.
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