Forced Reset Ready™ (FRR) is a One Horse AR-15 built like an Express and tuned for forced reset use, shipped without a selector so you can add the forced reset selector or forced reset trigger you choose. Every FRR HD comes with an FRR-compatible trigger group, a gas system set up for forced reset use, and an H2 buffer installed, in 5.56/.223 and .300 BLK.
Shop One Horse Forced Reset Ready™ AR-15 builds: Express tuning with an FRR trigger group, FRR gas system and H2 buffer installed. No selector installed, so the selector choice is yours.
2027 sale prices shown. Must be 18+ (21 where state or local law requires it) and transfer through an FFL. Want a factory-installed Atrius FRS? See Express rifles.

SKU: OH-FRR01

SKU: OH-FRR02

SKU: OH-FRR03

SKU: OH-FRR04

SKU: OH-FRR05

SKU: OH-FRR06

SKU: OH-HGFRR01

SKU: OH-HGFRR02

SKU: OH-HGFRR03

SKU: OH-HGFRR04

SKU: ADG-FRS-S

SKU: ADG-FRS-AMBI
Must be 18 or older (21 where state or local law requires it). Firearms ship to a licensed FFL dealer for transfer. You’re responsible for knowing and following all federal, state and local laws that apply to you, your firearm and any forced reset device. Forced reset products are not available for shipment to all states. How to Buy a Gun Online
Every Forced Reset Ready™ build ships with the FRR trigger group installed at our shop.
The FRR gas system and H2 buffer are installed and matched so the build is ready when you add your selector.
No selector installed, so the selector choice is yours. Atrius forced reset selectors are listed above.
A One Horse AR-15 built and tuned for forced reset use, with no selector or Forced Reset Trigger included, so you add your own.
No. Add your own. Want the Atrius FRS factory-installed? See One Horse Express. We also sell the Atrius Forced Reset Selector alone: ambidextrous or single side.
An FRR-compatible trigger group, a gas system set up for forced reset use, and an H2 buffer.
FRR HD 16″ rifles, 10.5″ and 7.5″ pistols, 10.5″ M-LOK and Quad SBRs, and FRR HD complete uppers in 5.56/.223 and .300 BLK.
Check your device maker’s compatibility list. One Horse lowers are low shelf lowers that accept multiple Forced Reset Selector and Forced Reset Trigger style devices. More: forced reset trigger vs forced reset selector.
Order online, pick an FFL dealer at checkout, and pick up with photo ID after the background check. Check your federal, state and local laws, and ask your FFL dealer, before you buy.
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