Atrius Development Forced Reset Selektor - Ambi

Atrius Development Forced Reset Selektor - Single Side

The Atrius Forced Reset Selektor (FRS) — the most robust safety selector on the market, engineered for precision, speed, and durability. Designed for mil-spec AR-15 rifles chambered in .223, 5.56, or .300 BLK, this drop-in upgrade gives you three distinct positions: SAFE, SEMI (traditional), and FULL-SEMI — a mechanically leveraged mode that enhances reset speed without compromising reliability.

Unlike forced-reset triggers (FRTs) that accelerate wear, the Atrius FRS is built to preserve your rifle’s longevity. Made from heat-treated 4140 steel and finished with corrosion-resistant coating, it’s ready to withstand mud, rain, sweat, and anything else the field throws at you. With crisp 90-degree throw engagement, aggressive ergonomics, and rock-solid positioning, this selector delivers tactile confidence and lightning-fast manipulation under pressure.

Three-Position Selector
SAFE, SEMI, and FULL-SEMI modes for enhanced manipulation and control.

Drop-In Installation
Installs in minutes with minimal tools; some fitment may be required.

Mil-Spec Compatibility
Seamlessly integrates with standard AR-15 fire control groups — no modifications needed.

4140 Steel Construction
Heat-treated for extreme durability and long-term reliability.

Corrosion-Resistant Finish
Built to endure harsh environments without degradation.

Ultra-Smooth Engagement
Crisp, tactile clicks with no mushy feel — designed for 90° throw.

Made in the USA
Proudly manufactured by Americans for Americans.

Specifications

• Compatibility: Mil-Spec AR-15 (.223 / 5.56 / .300 BLK)
• Positions: SAFE / SEMI / FULL-SEMI
• Material: Heat-Treated 4140 Steel
• Finish: Corrosion-Resistant Coating
• Engagement: 90° Throw
• Installation: Drop-In (some fitment may be required)
• Ergonomics: Textured, Chamfered Lever
• Country of Origin: USA
• Legal Restrictions:
  • Not available in: CA, CT, DE, FL, HI, IL, MA, MD, MN, NJ, NV, NY, OR, RI, VA, WA, D.C.
  • No US Territories or International Orders
• Legal Disclaimer: Buyer is responsible for compliance with all applicable federal, state, and local laws.