The One Horse Express Series isn't just a firearm. It's a statement. Engineered in Brownstown, Indiana and built to a standard most manufacturers won't commit to, every firearm in the series leaves our floor with the Atrius Forced Reset Selector professionally installed.
Installing a Forced Reset Selector isn't always plug-and-play. Done wrong, it doesn't run. Every One Horse Express rifle has the Atrius FRS fit, timed, and tested at the factory — so you're not troubleshooting at the range. You're shooting.
One Horse builds the rifle. Atrius pushes it further. The partnership behind the One Horse Express Series brings together American manufacturing and precision innovation — so what reaches your hands is professionally installed, factory tested, and built to run.
Sale: $999.99
The One Horse Express delivers unmatched speed, precision, and reliability in every shot. Purpose-built for serious performance and professionally installed to the highest standards, it offers uncompromising quality and confidence you can count on. Designed for shooters who demand excellence, the One Horse Express stands ready when performance matters most.
order now before inventory is gone!
Ships to licensed FFL dealers only.
Built on the One Horse Express. The Breek Arms WARHAMMER Mod2 ambidextrous charging handle — 7075 aluminum construction, wide set-back latches that clear any optic, and textured grooves that grab even with heavy gloves. Simple upgrade. Serious function. This is the hardware we trust on our rifles.
The CCS stock delivers a rock-solid cheek weld, smooth length-of-pull adjustment, and the kind of lightweight durability that holds up shot after shot. Paired with the THRIL RTG grip, it gives the rifle a balanced, confident feel in the hand—tough enough for whatever comes next.
Installing a Forced Reset Selector isn't always plug-and-play. Done wrong, it doesn't run. Every One Horse Express rifle has the Atrius FRS fit, timed, and tested at the factory — so you're not troubleshooting at the range. You're shooting.
Download the One Horse Express Specification Sheet: Click Here
| SKU: OHX-AI01 | |
|---|---|
| SELECTOR | Single-Side Atrius FRS Safe | Semi | Super-Semi |
| CALIBER | 5.56 NATO / .223 Rem |
| ACTION | Semi-Automatic, Direct Impingement |
| BARREL | 16" · 4150 CrMoV · SOCOM Profile · 1:8" Twist |
| GAS SYSTEM | Mid-Length · .750 Steel Low-Profile Block |
| RECEIVERS | 7075-T6 Aluminum · Type III Hard Anodized |
| HANDGUARD | 15" M-LOK Free-Float Rail V3 |
| BCG | M16 Profile · Black Nitride |
| CHARGING HANDLE | Breek Arms Warhammer |
| TRIGGER | Single-Stage Curved |
| GRIP | Thril™ RS Pistol Grip |
| BUFFER | H2 Buffer · 7075 Aluminum Mil-Spec Carbine Tube |
| STOCK | Thril™ CCS 6-Position Adjustable |
| MAGAZINE | 30-Round Thril™ Magazine |
| MUZZLE DEVICE | A2 Flash Hider · Mil-Spec · 1/2×28 |
| WEIGHT | 6.5 lbs (unloaded) |
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This product cannot be shipped to the following states:
By purchasing this product, you acknowledge that you are legally permitted to own and possess it in your jurisdiction. It is your responsibility to ensure compliance with all federal, state, and local laws. The Atrius FRS is designed as a safety selector and must be used in accordance with all applicable firearms regulations. We are not responsible for misuse or violations of law.
This product is intended for lawful use only. Purchaser assumes all responsibility for legal compliance in their jurisdiction.
