One Horse Express Retro Sarge 20" Rifle with Atrius FRS
Vietnam-era M16A1-pattern 20-inch 5.56 rifle from the One Horse Express Retros, with the Atrius Mil-Spec Forced Reset Selector installed at the factory, rifle-length gas, and a fixed carry-handle upper.
- Price
- Contact for price
- Calibers
- 5.56x45mm
- Rail
- polymer
- Best For
- range training
Featured in
Key Highlights
- •Factory-installed Atrius Mil-Spec Forced Reset Selector
- •20-inch pencil-profile chrome-lined 4150 CrMoV barrel, 1:7 twist, rifle-length gas
- •M16A1-style fixed carry-handle upper, triangular A1 handguard, A1 fixed stock with trapdoor
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Overview
Sarge is the 20-inch rifle in the One Horse Express Retros, a Vietnam-era M16A1-pattern 5.56 rifle with the Atrius Mil-Spec Forced Reset Selector installed at the factory. One Horse developed the Retros with Atrius Development Group and named Sarge for Don Morgan, a U.S. Army Vietnam veteran from the Brownstown, Indiana area.
The barrel is a 20-inch pencil-profile 4150 CrMoV barrel with chrome lining, a QPQ finish, and a 1:7 twist on a rifle-length gas system. The forged 7075-T6 M16A1-style upper has a fixed carry handle, an A1 rear sight, an A1 forward assist, and no shell deflector. A rifle-length triangular clamshell handguard and an A1 fixed stock with a trapdoor finish the profile.
Sarge shares the Retros base package with Archie: a forged 7075-T6 OH-15 lower, B5 CAR15 LS2 grip, non-F-marked front sight base, Mil-Spec A2 flash hider, Mil-Spec charging handle, and an M16-cut bolt carrier group with an 8620 carrier and MPI-tested 9310 bolt. A limited Tiger Stripe Camo Cerakote finish is offered alongside black.
Key Features
- Factory-installed Atrius Mil-Spec Forced Reset Selector
- 20-inch pencil-profile 4150 CrMoV barrel, chrome lined, QPQ finish, 1:7 twist
- Rifle-length direct-impingement gas system
- Forged 7075-T6 M16A1-style fixed carry-handle upper, no shell deflector
- A1 rear sight and A1 forward assist
- Rifle-length triangular clamshell handguard
- A1 fixed stock with trapdoor and B5 CAR15 LS2 grip
- M16-cut BCG with 8620 carrier and MPI-tested 9310 bolt
- Limited Tiger Stripe Camo Cerakote option
Capability Profile
0-10 Scale Across 8 Axes
Pros
- +Atrius forced reset selector arrives installed in a complete rifle
- +20-inch barrel on rifle-length gas, the original M16A1 configuration
- +Chrome-lined barrel and M16-cut carrier with an MPI-tested bolt
Cons
- −Fixed carry handle has no flat-top Picatinny rail for a modern optic
- −Triangular clamshell handguard has no M-LOK or Picatinny accessory slots
- −Forced-reset legality and transfer eligibility vary by jurisdiction
Detailed Specifications
- caliber
- 5.56mm NATO
- Barrel Length
- 20 inches
- barrel
- Pencil profile, 4150 CrMoV, chrome lined, QPQ finish
- Twist Rate
- 1:7
- Gas System
- Rifle-length direct impingement
- upperReceiver
- Forged 7075-T6 M16A1-style, fixed carry handle, no shell deflector
- lowerReceiver
- Forged 7075-T6 One Horse OH-15, Type III hardcoat
- sights
- A1 rear sight, non-F-marked front sight base
- handguard
- Rifle-length triangular clamshell
- selector
- Atrius Mil-Spec Forced Reset Selector
- Muzzle Device
- Mil-Spec A2 flash hider
- stock
- A1 fixed stock with trapdoor
- grip
- B5 CAR15 LS2
- bcg
- M16 cut, 8620 carrier, MPI-tested 9310 bolt
- finish
- Black hardcoat anodized; limited Tiger Stripe Camo Cerakote option
- countryOfOrigin
- USA
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