Description
If you're rebuilding a carbine-length upper or just tired of a stock handguard that flexes and rattles, the One Horse OH-HG02 is worth a look. It's a 10-inch M-LOK free float handguard machined for mil-spec AR-15 upper receivers, finished in a tough black hardcoat anodizing that holds up to range time, weather, and everyday handling without flaking or fading. Measured out, the usable length comes in around 9.25 inches once it's mounted, which is normal for handguards in this class and still gives you a solid amount of real estate to work with.
Why the OH-HG02 Runs Free Float
Free floating means the handguard rides on the barrel nut instead of resting against the barrel itself. That matters because any pressure on the barrel from a sling, bipod, or your own grip can shift your point of impact shot to shot. By keeping the barrel isolated, the OH-HG02 helps your rifle group more consistently, whether you're shooting off a bag at the range or running drills.
M-LOK Slots That Make This Handguard Easy to Build Around
The OH-HG02 is cut with M-LOK slots around the body, so you're not stuck improvising with rail sections or adapters just to mount a light or an angled grip. Attachment points are spread out enough that you can balance weight where you want it instead of clustering everything up front. It's a straightforward setup for home defense guns, range rifles, or compact pistol builds where every ounce and inch counts.
Installation is what you'd expect from a mil-spec compatible handguard: it goes on with a barrel nut and basic tools, no special gunsmithing required. Once it's torqued down, you've got a lightweight, low-maintenance handguard that's not going to add bulk to a build meant to stay nimble.
Key Specifications
- Manufacturer: One Horse LLC
- Manufacturer Part Number: OHHG02
- UPC: 850078799197
- Mounting System: M-LOK
- Handguard Length: 10 in. nominal (9.25 in. measured)
- Color: Black
- Finish: Hardcoat Anodized
- Design: Free Float
- Compatibility: Mil-Spec AR-15 Upper Receivers
- Product Type: AR-15 Handguard
What’s Included
- One Horse OH-HG02 10" M-LOK handguard
- Barrel nut
- Installation hardware
Frequently Asked Questions
Is the One Horse OH-HG02 handguard actually free float?
Yes, it mounts to the barrel nut rather than resting on the barrel itself. That keeps outside pressure off the barrel, which helps your rifle hold its zero more consistently shot after shot.
Will the OH-HG02 fit my mil-spec AR-15 upper?
This handguard is built for standard mil-spec upper receivers, so it should thread on and index correctly on most AR-15 platforms. If your upper uses a proprietary barrel nut system, it's worth double checking compatibility before you order.
How much accessory space does this 10 inch handguard actually give me?
The M-LOK slots run along the body of the handguard, giving you room to mount a light, foregrip, or sling mount without needing extra rail adapters. It's enough space for a practical setup without turning the front end into a rail farm.
Do I need any special tools to install the OH-HG02?
You'll need a barrel nut wrench and basic AR-15 armorer's tools to get it torqued down properly, but nothing beyond what a typical handguard swap requires. No permanent modifications or gunsmithing are needed to install it.




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