Atrius Forced Reset Selector (FRS) – Single

Atrius Forced Reset Selector (FRS) – Single Description

This Atrius Forced Reset Selector (FRS) – Single fits all AR-15 patterned firearms. This selector switch works with uncut milspec triggers. This selector is easy to install and is a great base component for new builds or upgrading your existing AR-15.

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. Upgrade your AR-15 with the Atrius Development 3 Position Super Selector Safety, the ultimate forced reset selector that delivers unmatched control and performance. Engineered for tactical enthusiasts seeking precision and speed, this robust safety switch transforms your firearm into a versatile tool for any scenario, allowing seamless transitions between safe, semi-automatic, and super-semi modes without compromising reliability.

Precision-engineered from heat-treated 4140 steel, the Atrius FRS delivers uncompromising performance in a drop-in package. Experience forced reset technology without the wear and complexity of traditional systems.

Drop-In Installation
Swap out your factory safety in minutes and experience the next level of firearm ownership.

Runs with Mil-Spec Fire Control Groups
Seamlessly integrates with standard AR fire control groups and some cassette style triggers.

Hardcore Durability
Crafted from heat-treated, 4140 steel and coated in a corrosion-resistant black nitride finish. Rain, mud, sweat—it eats it all for breakfast.

Mechanically Leveraged Design
Our Forced Reset Selector (FRS) reduces wear on your rifle, preserving your weapon’s longevity — unlike forced-reset triggers that accelerate internal component degradation.

Ultra-Smooth Engagement
Crisp, tactile clicks with no mushy nonsense. Designed for 90-degree throw engagement.

Aggressive Ergonomics
Textured and chamfered for instant thumb indexing—even under stress.

No Modifications Necessary
No cutting your triggers. Ensures flawless function and longevity without modification.

Proudly Made in the USA
Built by Americans, for Americans.

Compatibility All Atrius FRS products have direct compatibility with mil-spec triggers that do NOT have a relief cut (U-notch). They also are compatible with a wide variety of single-stage, drop-in / cassette style triggers as well. The “G-LEVER” is the only FRS product that carries expanded compatibility to work with select Geissele triggers and similar products that feature a reduced hammer design. Aggressive Ergonomics Textured, chamfered-edge, and purpose-built design for speed. Your fingers will find the selector instantly, even under stress.

Below are the minimum firearm requirements:

1. Low shelf or Full Profile Trigger Pocket lower receiver

2. Full Profile BCG

3. H2 or H3 buffer

4. Trigger from our compatibility list below

COMPATIBILITY NOTICE:

• Certain platforms, such as AR9 variants, may require professional gunsmithing to ensure proper function of the selector lever.

• Firearms modified to “Super Safety” specifications may not be compatible with components designed for our FRS system, as the Atrius Safety Device features a solid lever cam design.

• The Super Safety system incorporates a 15-degree tolerance due to its dovetail construction, which may allow for limited over-travel before the cam surface disengages from the trigger bar.

Selector Screw and Torque Spec: T10 screw, 4/40 thread, selector spring. We recommend 15 in/lbs with blue loctite only.