One Horse Express
Built To Run™

One Horse Express. Factory-tuned FRS.

Rifles and pistols with Atrius FRS built in at the factory. Pick your model, buy now, and ship to your FFL.

One Horse Express is our Built To Run lineup of AR-15 rifle and AR pistol models with the Atrius Forced Reset Selector installed, timed and test-fired in Brownstown, Indiana.

Factory fitted
Atrius FRS Installed, Tuned & Tested
Retail shipping
Free Shipping To Your FFL
AvailabilityMost models
Ships in 1-3 Business Days
Built To Run™ · Shop the lineup

Express rifles & pistols

Every model ships with Atrius FRS factory-tuned. Sale prices shown. Rifles 18+ (21 where state or local law requires it), pistols 21+. Transfer through an FFL. Want the limited run? See the America 250 Express.

5.56 Rifles
5.56 Pistols
SBRs
.22LR

Rifles: 18+ (21 where state or local law requires it). Pistols: 21+. Firearms ship to a licensed FFL dealer for transfer. Check local laws before you buy. How to Buy a Gun Online

Why Express

Built To Run™

Factory-tuned FRS

Atrius FRS comes installed and tuned at our shop. No aftermarket install, no guessing on setup. About the forced reset selector

Partnered with Atrius

We work with Atrius so every Express model leaves the line with the same FRS system, Built To Run™.

Made in the USA

Family-owned, veteran-owned, and built with 100% US-made parts in our Indiana factory.

FAQ

Express questions

What is One Horse Express Built To Run™?

One Horse Express firearms are AR-platform rifles and pistols built in Brownstown, Indiana with an Atrius Forced Reset Selector (FRS) factory-fitted, timed, and tested so the firearm leaves the floor ready to run.

Is Atrius FRS included on Express models?

Yes. Every One Horse Express rifle and pistol in the lineup ships with Atrius FRS installed and factory-tuned.

Do One Horse Express firearms ship to my FFL?

Yes. Retail customers receive free shipping to their FFL. Buyers must be 21+ and complete transfer through a licensed FFL.

Dealers

Stock Express at your shop

Apply for dealer pricing and bring the Express lineup into your store. Approval is usually under 24 hours.

Become a Dealer
Join Our One Horse Waitlist We will inform you when your One Horse product is back in stock!