ATRIUS × ONE HORSE EXPRESS
An Atrius × One Horse Collaboration
Welcome to the
One Horse Express
One Horse Express
The Industry's First FRS-Ready Rifle
Engineered for duty-grade reliability and precision from the ground up — no tuning required. Built to run forced-reset, right out of the box.
FRS Ready · No Tuning
*Parts and accessories not included. Images represent a build example.
Every One Horse Express rifle has the Atrius FRS
fit, timed, and tested at the factory.
fit, timed, and tested at the factory.
Inside the OH-15
Built FRS-Ready From the Ground Up
01
Elite Core Components
—16″ SOCOM profile 4150 CrMoV barrel
—Fixed gas block
—Full profile / M16 profile BCG
—Single stage mil-spec trigger
02
Perfect Balance
—Includes H2 buffer weight
—Tuned carbine spring
—FRS optimized
—Zero tuning or troubleshooting required
03
Versatile Fire Control
Seamlessly transition between three positions on a single selector.
Safe
Semi
Super-Semi
FRS Ready. No Compromise.
The OH-15 by One Horse Express. A first-of-its-kind collaboration with Atrius Development Group.
Secure Yours Now!