AR-15 Parts · Handguards
One Horse · Buyer’s guide
One Horse makes three slim M-LOK AR-15 handguards, each with a steel barrel nut and a hardcoat anodized finish. Here’s how to pick a length for your barrel.
The basics
The handguard covers the barrel and gas tube and gives your support hand somewhere to go. An M-LOK handguard also gives you slots to mount a grip, light or sling point.
All three One Horse handguards share the same build: a slim profile, M-LOK slots, a steel barrel nut and a hardcoat anodized finish. The difference is length.
A handguard that covers the gas block needs a gas block that fits under it. Check your gas block before you pick a handguard.
Side by side
Lengths and fitments from the One Horse product pages. Prices are live from the store.
| Handguard | Length | On One Horse uppers | Price |
|---|---|---|---|
| 7″ M-LOK Handguard | 7″ | The 7.5″ complete uppers use a 7″ M-LOK handguard | $54.99 |
| 9.25″ M-LOK Handguard | 9.25″ | Shorter option for compact builds | $56.99 |
| 15″ M-LOK Handguard | 15″ | The 16″ complete uppers and OH-15 rifles use a 15″ M-LOK handguard | $59.99 |
Our take
Shop
SKU: OH-GB01
Free shipping on orders of $399 or more. Sold out? Click Notify Me When Available on the product page.
Rather skip the build?
Every One Horse complete upper comes with its handguard installed. See the 10.5″ upper guide, short AR-15 uppers and the AR-15 parts list.
Questions
Three M-LOK handguards: the 7″ (OH-HG03), the 9.25″ (OH-HG02) and the 15″ (OH-HG01). All three have a slim profile, M-LOK slots, a steel barrel nut and a hardcoat anodized finish.
Match it to your barrel and gas system. On One Horse complete uppers, the 7.5″ barrels run a 7″ M-LOK handguard, the 10.5″ barrels run a 10″ M-LOK handguard and the 16″ barrels run a 15″ M-LOK handguard.
Yes. One Horse lists a steel barrel nut with each handguard.
M-LOK is a slot system for mounting accessories like grips, lights and sling mounts straight to the handguard.
One Horse 16″ OH-15 rifles and the 18″ 6mm ARC rifle use a 15″ M-LOK handguard.
A handguard that covers the gas block needs a gas block that fits under it. One Horse sells a .750″ low profile steel gas block with set screws included. Check your barrel’s diameter at the gas block first.
No. A handguard is a part, so it ships to you. Check your state and local law before you order.
Yes. One Horse lists each handguard as made in the U.S.A.
Orders of $399 or more ship free.
American Made · Family Owned · Veteran Owned
7″, 9.25″ and 15″ M-LOK handguards, made in America.
Federal, state and local laws vary and change, and it is the buyer’s responsibility to follow them. Questions? Call 812-200-0305 or email customerservice@theonehorse.com.
Your cart's empty. Here's where most people start.
Free shipping on orders $399 or more
Classified until 11.08.2026 · 9:00 AM ET
Get the drop alert the minute it goes live. Built To Run™. 5% of gross sales of the drop firearms sold in November goes to Columbus Indiana Huey, an all-volunteer veterans nonprofit.
Wheels down at the LZ in
Trouble? Sign up on the drop page
