This is the Atrius Mil-Spec FRS (single side) featuring a mil-spec selector switch and a traditional design that looks great, especially if you’re working on a retro build.
It’s the most robust solution on the market that enables the user to have 3 positions; SAFE, SEMI (Traditional) and SUPER-SEMI. This Forced Reset Selector (FRS) is compatible with mil-spec/full-profile AR15 (chambered in .223/5.56/.300 BLK) fire control groups with no modifications required.
Precision-engineered from heat-treated 4140 steel, the Atrius Mil-Spec FRS delivers uncompromising performance in a drop-in package. Experience forced reset technology without the wear and complexity of traditional FRT systems.
- Style: Mil-spec w/ Ergonomic Ridges & Pointer for Position Reminder
- Configuration: Safe | Semi | Super-Semi
- Compatibility: Mil-Spec AR15 (.223/5.56/.300 BLK)
- Installation: Drop-In Ready (No Modifications Necessary)
- Made in the USA
- Finish: Corrosion-Resistant Black Nitride
- Material: Heat Treated 4140 Steel
Restricted States
This product cannot be shipped to the following states:
- California
- Connecticut
- Delaware
- District of Columbia
- Florida
- Hawaii
- Illinois
- Maryland
- Massachusetts
- Minnesota
- Nevada
- New Jersey
- New York
- Oregon
- Rhode Island
- Washington
- US Territories
- International
Legal Compliance
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.



