Description
LaRue built its name on rifles that group tighter than most people can hold, and the LT15 Quad Rail in this 12 inch configuration brings that same Texas-made precision down to a compact, fast-handling size. The receivers are CNC machined from billet, upper and lower mated together with the kind of fit you notice the first time you shake the gun and hear nothing rattle. The 12 inch Stealth medium-contour barrel runs a 1:8 twist that stabilizes everything from 55 grain plinking loads up through heavy 77 grain match bullets, and plenty of LT15 owners report groups under half MOA with quality ammo. M4 feed ramps keep it running smooth, and the 1/2×28 threaded muzzle wears a birdcage flash hider from the factory.
Why the LT15 Quad Rail Setup Works
The free-floated 9 inch quad rail gives you honest-to-goodness Picatinny real estate on all four sides, so lights, lasers, bipods, and vertical grips bolt on without hunting for M-LOK inserts. Because the handguard never touches the barrel, hanging accessories on it does not shift your zero. Behind that, LaRue's own MBT-2S two-stage trigger breaks clean at 2.5 pounds, which is a huge part of why these rifles shoot so far above their weight class. Most factory ARs make you budget for a trigger upgrade on day one. This one does not.
Fit and Feel of the LaRue LT15
The R.A.T. stock adjusts for length of pull so it fits shooters of different sizes or works around body armor and heavy winter layers, and the A-PEG grip gives your firing hand solid, comfortable purchase. Everything wears a rugged hard anodized black finish that holds up to real use.
Ready to Run Out of the Box
LaRue ships the LT15 with a branded 30 round Amend2 magazine for a 30+1 capacity, so all you need is an optic and ammo. For anyone wanting a short, accurate 5.56 with premium components at every touchpoint, this one earns its reputation.
Key Specifications
- Manufacturer: LaRue Tactical
- Model: LT15 Quad Rail
- MPN: LT1555612QUAD
- UPC: 810143182965
- Caliber: .223 Rem / 5.56 NATO
- Action: Semi-Auto
- Barrel Length: 12 in, Stealth medium-weight contour
- Twist Rate: 1:8
- Muzzle Device: A2-style birdcage flash hider, 1/2×28 thread
- Handguard: 9 in free-float quad rail
- Trigger: LaRue MBT-2S, 2.5 lb pull
- Stock: LaRue R.A.T. adjustable
- Grip: LaRue A-PEG
- Capacity: 30+1
- Overall Length: 28.5 in
- Finish: Black hard anodized
What’s Included
- LaRue Tactical LT15 Quad Rail 5.56 firearm
- One LaRue-branded 30-round Amend2 magazine
Frequently Asked Questions
How accurate is the LaRue LT15 Quad Rail?
LaRue states that LT15 rifles are known for consistency, with many owners seeing groups under half MOA using match-grade ammo. The 12 inch Stealth barrel, free-floated handguard, and 2.5 lb MBT-2S trigger all work together toward that end. Feed it quality ammunition and it will likely outshoot most of us on our best day.
What ammo does the 1:8 twist barrel handle best?
A 1:8 twist is the sweet spot for 5.56 because it stabilizes a wide range of bullet weights. It runs standard 55 grain range ammo just fine and also handles heavier 69 to 77 grain match loads well. If you want the tightest groups, heavier match bullets tend to bring out the best in this barrel.
Does the LT15 come with a magazine, and will it take standard AR mags?
Yes, it ships with one LaRue-branded 30-round Amend2 magazine for the full 30+1 capacity. The magwell accepts standard AR-15 pattern magazines, so your existing PMAGs, aluminum GI mags, and similar will drop right in.
Do I need to upgrade the trigger on the LT15 Quad Rail?
No, and that is one of the big draws here. LaRue installs its own MBT-2S two-stage trigger from the factory, breaking at a crisp 2.5 pounds, and it is the same trigger people buy separately to upgrade other ARs. It is one of the most respected factory triggers in the AR world.





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