Atrius Forced Reset Selector

(7 reviews)

Upgrade your AR-15 with the original Atrius Forced Reset Selector (FRS) — "Standard Single". Released in May 2025 as our flagship drop-in safety, this proven 3-position selector delivers seamless transitions between SAFE, SEMI, and SUPER-SEMI modes without requiring gunsmithing or cutting of trigger groups.

Powered by Atrius Development Group's Forced Reset Technology™.

*Packaging will come in a branded black bag. Please watch out for scams, copies and fakes!

$199.00

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Ships within 2 business days

Availability: Limited to 10 units per purchase

Yes, add FRS Lever Standalone for $39.99 Out of stock

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Manufactured In USA

PRODUCT SPECIFICATIONS

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 FRT systems.

Features

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

Materials

Finish: Corrosion-Resistant Black Nitride
Material: Heat Treated 4140 Steel

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.

No Modifications Necessary

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

Aggressive Ergonomics

Textured, chamfered-edge, and purpose-built design for speed. Your fingers will find the selector instantly, even under stress.

Atrius Forced Reset Selectors

Product Comparison

Product

Single Switch

Ambi Switch

Lever Blocker

Notes

FRS Standard / Single

✓ Yes

—

Standard ergonomic switch for ease of use

FRS Mil-Spec / Single

✓ Yes

—

Has mil-spec style switch

FRS Ambi

—

✓ Yes

—

Great for left-handed users

FRS Ambi G-Lever

—

✓ Yes

Has additional Geissele trigger compatibility

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.

VIDEOS

Corrosion-Resistant Coating

Advanced black nitride finish

Machined & Heat-Treated 4140 Body

Military-grade steel construction for maximum durability

Positive Positioning Detent

Precise 90° indexing with tactile feedback

Restricted States

This product cannot be shipped to the following states:

California
Connecticut
Colorado
Delaware
District of Columbia
Florida
Hawaii
Illinois
Maryland
Massachusetts
Minnesota
Nevada
New Jersey
New York
Oregon
Rhode Island
Virginia
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.

Important Notice

This product is intended for lawful use only. Purchaser assumes all responsibility for legal compliance in their jurisdiction.

Product Reviews

from 7 reviews

5.0

4.0

3.0

2.0

1.0

Review Lists

Mike

Jun 12th 2025

Frt

Awesome drop in! Went in smoothly without modifications into a dd m4, psa 15, and a couple generic ar15s. I have the delta team one and it feels like the atrius trigger is faster. The semi is super crisp and clean, good reset. Upon switching to super safety the first couple times it felt a little gummy, but after some clp it's as smooth as butter. Highly recommend this drop in, you won't be disappointed!!!!
Steve Fuddster

Jun 10th 2025

Installed in M16A1 - rocks!

Works wonderfully! https://imgur.com/a/4FwbORo
R. Hall

Jun 1st 2025

ATRIUS SUPER SELEKTOR

Runs like a dream in all my rifles just be patient with them they have a ton of orders but they will get out to you eventually.
Zach

May 29th 2025

My hk mr556 identifies as a hk 416

Was a little worried that it wouldn't work due to bcg but it chopped away smoothly and effectively. I highly recommend this product!
Mark Macayan

May 28th 2025

Intuitive, Reliable, and Ready to Run – Selektor is a Winner

I placed my order for the Selektor from Atrius Development Group within minutes of its release on 5/22/2025 and had it in hand just four days later. It arrived in a plain, sealed yellow bag—nothing flashy, but it got the job done. While I was initially concerned by the lack of installation instructions, that worry quickly disappeared. The install was surprisingly intuitive and straightforward. I mounted it on my 5.56 AR-15 using a BCM mil-spec trigger, and unlike other safeties I’ve used (like the Super Safety, which needed some rifle tweaking), the Selektor worked perfectly on the first try. Since then, I’ve tested it across multiple uppers with different barrel lengths and calibers, and it continues to perform flawlessly. I’m genuinely impressed with the reliability and ease of use. Looking forward to seeing the Geissele-compatible and ambidextrous versions in the future—this is one upgrade I’d recommend without hesitation.
Jacob Williamson

May 28th 2025

Worked great in ATI lower! Palmetto lower wasn’t drop in though

After getting it ironed out, Functioned perfectly on semi and super selector mode. I’ll explain below: Did not drop into a palmetto state lower. Selector switch was binding up badly in the hole on the receiver. Definitely a palmetto state issue. Put it into an ATI lower and used the same mil spec trigger. Worked FLAWLESSLY!! Selector switch was really stiff and clicked very positively into all positions, and I imagine it’ll get less stiff over time.
Hunter

May 26th 2025

Super selector

The super safety was very easy to install only took about 5 minutes. I couldn’t have asked for a better more affordable and durable product 10/10 will buy more