Atrius Forced Reset Selector

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.

$199.00
Ships within 2 business days
Availability: Limited to 10 units per purchase
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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
PRODUCT SPECIFICATIONS
Drop-In Installation

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

Runs with Mil-Spec Fire Control Groups

Seamlessly integrates with standard AR fire control groups, ensuring flawless function and longevity without modification.

Hardcore Durability

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

Mechanically Leveraged Design

Reduces wear on your rifle — unlike forced-reset triggers (FRTs) that accelerate internal component degradation.

Aggressive Ergonomics

Aggressive Ergonomics

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

Compatibility Note

The FRS is drop-in compatible designed with mil-spec and full profile AR15 components. Check out our compatibility page for more information.

View Full Compatibility Table

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

Product Reviews

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Review Lists

  • Mike

    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

    Steve Fuddster

    Jun 10th 2025
    Installed in M16A1 - rocks!

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

  • R. Hall

    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

    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

    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

    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

    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

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