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One Horse Rifles

16" 5.56/.223 AR-15 Carbine Rifle 15" M-LOK

This rifle ships free Rifles & Pistols Ship Free to your FFL

SKU OH-OG02UPC 850078799708

A reliable American-made black rifle featuring a modular handguard, adjustable stock, and polymer magazine, designed for precision and durability.

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  • Limited Lifetime warranty
  • Ships to your dealer

How buying a rifle works

  1. Order online.Pick any options above, then check out.
  2. Choose your dealer.At checkout choose a dealer that is close to you for transfer.
  3. Pick it up.Your dealer checks your ID, runs the required background check and hands it over. You must be at least 18 to buy this rifle, or 21 where state or local law requires it.
What’s in the build

One Horse Rifle Specifications

Barrel
Caliber5.56mm NATO
Barrel ProfileSOCOM
Muzzle Thread1/2×28
Twist Rate1:8
Gas SystemCarbine
Upper
Handguard Length15 in.
Charging HandleStandard
Lower
Buffer TubeMil-Spec
Furniture
GripA2
StockOne Horse M4 6 Position
In the box
Magazine30 Round Magazine
Test FiredEvery firearm is test fired before it ships
Customer Reviews

Reviews

Real feedback from customers who have experience with this product.

5.0
★★★★★
5 reviews
Richard C. Aug 05, 2026
★★★★★

Very happy with this 5.56. The MLOK rail feels nice and everything was tight out of the box.

Evan W. Jul 30, 2026
★★★★★

Really like all the accessory options they offer with it. I added the Vortex red dot, extra mag and upgraded BCG so it came pretty much ready for the range. Everything fit good and saved me from having to shop around for parts later.

Jeremy B. Jul 28, 2026
★★★★★

Great rifle for the money. Feels solid, shoots good and hasnt gave me any trouble.

Tyler S. Jul 17, 2026
★★★★★

I wanted a simple 5.56 rifle that I could use as-is and upgrade over time without spending a ton of money up front. This One Horse carbine seemed like a good deal and after getting it in my hands I feel like I made the right choice. The fit between the upper and lower is good, the finish looks clean and there wasnt anything loose or rattling around. The 15 inch MLOK handguard has plenty of room and feels comfortable without making the front end too heavy. The adjustable stock and standard grip are nothing fancy but they do the job, and I like having the option to change them later if I want. The rifle feels balanced and is easy to handle standing or from a bench.

Alan S. Jun 30, 2026
★★★★★

This is a really good basic 5.56 that doesnt need a bunch of work right away. It feels solid, the 15 inch handguard is comfortable and the rifle balances pretty well. Ive had no issues with it so far and would buy another.

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About

16" 5.56/.223 AR-15 Carbine Rifle 15" M-LOK

Every One Horse rifle and component is made in America with uncompromising standards. We use U.S.-sourced materials, U.S. manufacturing, and strict quality control at every step. No shortcuts, no imported surprises — just dependable parts built by people who take pride in American craftsmanship. When you run One Horse, you’re running gear you can trust every single day.

16" 5.56/.223 AR-15 Carbine Rifle 15" M-LOK questions

How do I get my rifle?

At checkout choose a dealer that is close to you for transfer. We ship to that dealer and you pick it up there.

How old do I need to be?

You must be at least 18 to buy this rifle, or 21 where state or local law requires it.

Does it ship free?

Orders of $399 or more ship free.

Is there a warranty?

Yes. One Horse backs it with a Limited Lifetime warranty.

Ready when you are

Get your 16" 5.56/.223 AR-15 Carbine Rifle 15" M-LOK

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Ships freeLimited Lifetime warranty

Upgrade Your BCG

Extra Magazines!

Rein In The Noise!

Take Charge with Breek!

Get An Optic From Vortex!

MSRP: Original price was: $679.99.Current price is: $579.99.

In stock

Financing available on orders $600+ with Credova