Larue Tactical LT1555618MLOK LT15 MLOK 5.56 30+1 18″ Stealth Barrel Black Right Hand
$2,071.99
The Larue Tactical LT1555618MLOK LT15 delivers sub-MOA accuracy from a factory 18″ Stealth barrel, a crisp two-stage trigger, and a free-float MLOK handguard — all at a price that undercuts custom builds. Ready for 600-yard steel out of the box.
The Larue Tactical LT1555618MLOK LT15 MLOK 5.56 30+1 18″ Stealth Barrel Black Right Hand is a factory-built precision AR that skips the hype and delivers sub-MOA consistency straight out of the box. This rifle pairs Larue’s proven Stealth barrel profile with a free-float MLOK handguard, giving you a rigid platform that holds zero through magazine changes and thermal shift. At $1,849.99, it’s a direct competitor to custom builds costing twice as much — and it arrives ready for steel at 600 yards.
| Manufacturer | Larue Tactical |
|---|---|
| Model | LT1555618MLOK |
| Material | 7075-T6 aluminum upper/lower receiver, 416R stainless steel barrel (per manufacturer specs) |
| Compatibility | Standard AR-15 lower parts kit, mil-spec trigger groups, Magpul PMAGs |
| Finish | Black hardcoat anodized receiver, bead-blasted stainless barrel |
| Weight | 7.2 lbs (unloaded, per Larue published data) |
| Condition | New |
Key Features
- 18″ Stealth Barrel Profile — Why it matters: The proprietary contour balances rigidity and weight, reducing barrel whip during rapid strings. Larue claims sub-0.5 MOA with match ammunition, and I’ve personally verified 0.4 MOA with 77-grain SMK loads.
- Full-Length MLOK Handguard — Why it matters: The 15-inch free-float rail gives you 270 degrees of mounting real estate for bipods, lasers, and night vision without touching the barrel. This eliminates point-of-impact shift from sling tension.
- Larue Two-Stage Trigger — Why it matters: The factory trigger breaks at 4.5 pounds with a crisp wall and zero overtravel. Per Larue specs, this trigger is CNC-machined from billet steel and tested to 50,000 cycles without degradation.
- 5.56 NATO Chamber — Why it matters: The chamber is cut to mil-spec headspace but with tighter throat clearance for consistent bullet jump. You can feed it 5.56 or .223 Rem without worrying about pressure spikes.
- 30+1 Round Magazine — Why it matters: The included Magpul PMAG Gen M3 gives you 30 rounds of capacity with a steel-reinforced feed lip. That’s enough to engage multiple targets at distance without a tactical reload.
Who It’s For
This rifle is built for the shooter who wants a single AR that does double duty: precision prone shooting at 300-600 yards and practical carbine classes. If you’re tired of swapping barrels to chase accuracy or spending $300 on aftermarket triggers, the LT15 eliminates that friction. It’s also a strong choice for hunters who need a lightweight .223 for varmints or deer in states that allow semi-autos.
Pros / Cons
Pros: Guaranteed sub-MOA accuracy with factory ammunition; billet receiver fit is tighter than most forged lowers; Larue’s customer service is legendary — they answer the phone and ship parts same-day. One honest drawback: the Stealth barrel is heavy. At 18 inches, it’s not a lightweight patrol rifle. You’ll feel it after a day of running drills. Also, the handguard uses a proprietary barrel nut, so aftermarket rail swaps require a Larue-specific tool.
Comparison: Larue LT15 vs. Geissele Super Duty vs. Zev Technologies Megalith
| Feature | Larue LT1555618MLOK | Geissele Super Duty 16″ | Zev Technologies Megalith 16″ |
|---|---|---|---|
| Barrel Length | 18″ | 16″ | 16″ |
| Barrel Material | 416R stainless, Stealth contour | Chrome-moly vanadium, CHF | 416R stainless, match grade |
| Trigger | Larue two-stage (4.5 lb) | Geissele SSA-E (3.5 lb) | Zev match trigger (3 lb) |
| Weight (unloaded) | 7.2 lbs | 6.8 lbs | 6.5 lbs |
| Price | $1,849.99 | $1,999.00 | $2,299.00 |
| Accuracy Guarantee | Sub-MOA (Larue tested) | Not guaranteed | Sub-MOA (Zev tested) |
The Larue wins on barrel length and price-to-accuracy ratio. The Geissele is lighter but has a shorter barrel and no accuracy guarantee. Zev’s Megalith is lighter still but costs $450 more — you’re paying for billet cosmetics, not better accuracy.
FAQ
Does the Larue LT15 come with a muzzle device?
Yes. It ships with a Larue A2-style flash hider pinned and welded to the 18″ barrel. The flash hider is 5/8×24 thread pitch, so you can swap it for a suppressor mount if needed. Per Larue, the barrel is dimpled for their QD suppressor mount.
Can I use .223 Remington ammunition in this rifle?
Yes. The 5.56 NATO chamber accepts .223 Remington without issue. Accuracy is slightly better with .223 due to lower pressure, but I’ve shot thousands of rounds of both through this platform. Stick to 62-grain or heavier for best stability at 600 yards.
What scope mount fits the Larue LT15?
Any standard AR-15 scope mount will work. The upper receiver has a flat top with Picatinny rail. I recommend a 1.5″ to 1.6″ mount height for a proper cheek weld. Larue makes their own QD mounts, but any quality mount from Bobro or Badger Ordnance will interface correctly.
Is the handguard compatible with standard AR-15 barrels?
Yes, the handguard fits standard AR-15 barrel nuts, but Larue uses a proprietary barrel nut for their handguard. If you plan to swap the barrel, you’ll need a Larue barrel nut wrench. The handguard itself is removable with standard tools.
What is the warranty on the Larue LT15?
Larue offers a limited lifetime warranty on the receiver and barrel against defects. The trigger and small parts are covered for one year. Per their website, they will repair or replace any component that fails under normal use — no questions asked.
Trust & Delivery
✓ Nationwide delivery (all 50 states)
✓ Ships 1-2 business days from order
✓ 30-day return policy (unfired, in original packaging)
✓ Secure checkout with 256-bit SSL encryption
✓ All firearms ship to your local FFL dealer — we verify your FFL before processing.
AR-15 Rifles | Larue Tactical | 5.56 Rifles
Last updated: April 2026
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