One Horse Express · SKU OHX-AI01-1
US-made 16" Express rifle in 5.56mm NATO / .223 Rem with factory-fitted Atrius Forced Reset (FRS), patriotic Cerakote, and free shipping to your FFL. Built, tested, and tuned in Brownstown, Indiana.
Pay over time with Credova · SKU OHX-AI01-1
Patriotic Cerakote. Atrius FRS. Built in Brownstown, Indiana.
Add the 16" 5.56/.223 Atrius FRS rifle to cart, choose build upgrades (optics, mag, heat shield, BCG, Ambi FRS), or finance with Credova. Live WooCommerce checkout — same functions as the America 250 product page.
| Selector | Atrius Single Side FRS |
|---|---|
| Caliber | 5.56mm NATO |
| Barrel | SOCOM profile |
| Muzzle thread | 1/2×28 |
| Twist | 1:8 |
| Gas system | Mid-Length |
| Muzzle device | A2 |
| Handguard | 15" Express M-LOK |
| Charging handle | Breek Warhammer Mod2 |
| Grip / Stock | THRiL RTG / Thril CCS |
| Magazine | 30-round |
| Weight | 7.14 lbs |
| SKU / UPC | OHX-AI01-1 · 850088856019 |
| Origin | Made in U.S.A. — Brownstown, IN |
Factory Atrius FRS, US-made parts, tuned in Brownstown, IN.
Single-side Atrius FRS fitted, timed, and tested at the factory. Safe · Semi · Super-Semi. No aftermarket guessing.
Ambidextrous charging handle with improved grip and reduced gas blowback when you run it hard.
Every America 250 leaves Brownstown fit-checked and range-ready. Warranty backed. Limited run.
Built To Run™ is One Horse’s standard for Express rifles that leave the Brownstown, Indiana factory with Atrius FRS fitted, timed, and tested. The America 250 Express is sold ready to fire after FFL transfer—no aftermarket FRS install required.
Yes. The 16" Express 5.56/.223 America 250 ships with a factory-fitted Atrius Single Side Forced Reset (FRS) selector. Safe, Semi, and Super-Semi positions are set and verified at One Horse before shipping.
Retail orders of the America 250 Express include free shipping to a licensed FFL dealer of your choice. You must be at least 18, or 21 where state or local law requires it. The FFL completes the transfer under federal and local law. Ships in 10 business days+.
One Horse builds the America 250 Express in Brownstown, Indiana, USA, using US-made parts. SKU OHX-AI01-1, UPC 850088856019. See the full Express lineup or buy on the live America 250 product page.
More Express rifles: the Express lineup · America 250 product page
Must be 18+ (21 where state or local law requires it) and transfer through a licensed FFL. Check local laws before you buy. Free retail shipping to your FFL. Warranty included. The America 250 Express is a US-made 5.56mm NATO / .223 Rem rifle with factory Atrius FRS, Built To Run™ by One Horse Arms in Brownstown, Indiana.
MSRP: Original price was: $1,549.99.$1,479.00Current price is: $1,479.00.
In stock
Some messages built this country. Some still do. The One Horse Express was born from that same spirit of independence—a rifle carried forward by the people who refuse to wait for permission. Developed in collaboration with Atrius Development Group, every Express rifle is assembled by Americans who believe the details are the difference between good enough and built right.
Engineered in Brownstown, Indiana and built to a high standard, every rifle in the series leaves our floor with the Atrius Forced Reset Selector professionally fit, timed, tested, and factory installed—Built To Run™. It rides on a 16-inch CrMoV nitride SOCOM-profile barrel with a 1:8 twist, a mid-length gas system with a low-profile staked steel gas block, and an H2 buffer for smooth, dependable cycling. A curved trigger, 15-inch Express-Lock handguard, Breek Arms Warhammer Mod2, and Thril RTG grip and CCS stock round out a platform tuned as a complete system from day one.
This is more than a parts list. It’s two American companies, one standard, pushing each other to build better and go further than either could alone. At Atrius Development Group, they say it best: Together we win. And that’s exactly what we intend to do—win, with them. Their fight is our fight. The Express is proof of what that partnership delivers: a rifle engineered, assembled, and tuned to be carried forward. Independence isn’t inherited. It’s carried forward.
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Nathan F. –
Really happy with this rifle and the FRS setup. The finish looks even better in person and it shoots great. Everything felt solid and worked like it should. Definetly gets alot of attention at the range. Have several friends that are planning to get one.
Michael D. –
Saw these guys on social media and had to give them a shot. This thing is well build, and the custom cerekote is perfect. No better way to celebrate America 250. I can definitely tell this is a high quality product, and will back for more. Excited to see what they introduce next!!!!
Martin S. –
Excellent Product, Have fired over 500 Rounds. No Hang Ups. Would highly recommend This product. Their custom work is second to none.
Seth M. –
The Gun speaks for itself, Nothing I can say can make it better than how One Horse makes it. Absolute animal of a gun.