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Questions & Answers
Will this function in a Colt M4 (6920) factory lower with FA BCG? AI Answer

The Atrius FRS is designed to work with mil-spec AR-15 fire control groups like the Colt M4 6920, but compatibility with a full-auto BCG specifically is not something I can confirm from the available product information, so I am not sure.

by OpticsPlanet AI, October 20, 2026
Will this make my ar15 full semiauto or do i need furthur modification to make it full auto? AI Answer

This selector only enhances semi-automatic firing speed through its FULL-SEMI mode; it does not convert your AR-15 to true full-auto, and no further modification for full-auto function is described or supported.

by OpticsPlanet AI, October 16, 2026
Customer Reviews
Helpful Positive Review
Worked like a charm by David, Verified Owner, October 9, 2026
Wasn’t sure at first but with a little understanding how this works along with tuning as needed, first time out to the range was impressive. Will see how it holds up over time.
1/1 found this helpful
Helpful Positive Review
For Range toy by D, Verified Owner, October 11, 2026
Works like it should. Selector is a little stiff but over time should smooth out.
1/1 found this helpful
Helpful Positive Review
super safe and decision causing by BCAftw, Verified Owner, June 23, 2026
Works fantastic with a RISE 140 trigger. Ive used it with both a auto bolt carrier and non Auto bcg and works the same either way. With an h3 buffer weight and good mags you're ready to rock. My only issue with it is that I have to decide wether I w...
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5/5 found this helpful
Helpful Positive Review
Atrius FRT by Robert Byrd, Verified Owner, June 16, 2026
It took a while to get it due to backorder but once shipped it arrived quickly, and is my second frt they work great once you tune your weapon to work with them, i like that its ambidextrous and works well with most any AR that it was put in
1/1 found this helpful
Helpful Negative Review
Atrius ADG-FRS-AMBI-OD by Danno, Verified Owner, September 15, 2026
Installed correctly and all function/ safety checks were flawless, fired several rounds in semi with no issues. Flipped to FRT and it didn’t make it through the first mag before the reset arm snapped in half. Pot metal. Have been attempting to warran...
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1/1 found this helpful
Most Recent Reviews
ATRIUS FRS by TAYLOR, Verified Owner, October 29, 2026
I call this a forced reset selector because it is a safety selector switch essentially. The build quality is top notch and the color coating hold up well under use. Great product.
Read All 16 Reviews
OpticsPlanet Exclusive
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OpticsPlanet Exclusive Product

OpticsPlanet Exclusive
You won't find this one anywhere else — it is designed, built and configured for OpticsPlanet and sold exclusively here.
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ATTENTION! We currently do not ship this product to CA, CT, DE, FL, HI, IL, MA, MD, MN, NJ, NV, NY, RI, OR, WA, Washington DC, and Boulder/Broomfield Counties in CO. Please see our policies for more information.

Product Info for OpticsPlanet Exclusive OPMOD Atrius Ambidextrious Forced Reset Selector

The most robust solution on the market that enables the user to have 3 positions; SAFE, SEMI (Traditional) and FULL-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.image

The Atrius FORCED RESET SELECTOR isnt just a safety, its an advantage.

Specifications for OPMOD Atrius Ambidextrious Forced Reset Selector:

Manufacturer: OPMOD
Gun Make: AR Platform
Gun Type: Rifle
Gun Model: AR-15
Fabric/Material: 4140 Steel
Hand: Ambidextrous
Condition: New

Features of OPMOD Atrius Ambidextrious Forced Reset Selector

  • Drop-In Installation Swap out your factory safety in minutes and experience the next level of firearm manipulation (some fitment may be required).
  • Runs with Mil-Spec Fire Control Groups Seamlessly integrates with standard AR fire control groups, ensuring flawless function and longevity without modification.
  • Hardcore Durability Crafted from heat-treated, 4140 steel and coated in a corrosion-resistant finish, the Atrius FRS laughs in the face of wear and tear. Rain, mud, sweatit eats it all for breakfast.
  • Mechanically Leveraged Design Forced Reset Selector (FRS) reduces wear on your rifle, preserving your weapons longevity unlike forced-reset triggers (FRTs) that accelerate internal component degradation.
  • Ultra-Smooth Engagement Crisp, tactile clicks with no mushy nonsense. Designed for 90-degree throw engagement.
  • Positive Positioning Without Slippage Engineered for rock-solid engagement, eliminating the risk of unintentional movement mid-fire, keeping you in full control at all times.
  • Aggressive Ergonomics Textured, chamfered, and purpose-built for speed. Your thumb finds the selector instantly, even under stress, with no fumbling, no hesitationjust pure control.

Package Contents:

  • OPMOD Atrius Ambidextrious Forced Reset Selector

OpticsPlanet Exclusive OPMOD Atrius Ambidextrious Forced Reset Selector Orderable Models

List of Orderable Models

  • OpticsPlanet Exclusive OPMOD Atrius Ambidextrious Forced Reset Selector, Flat Dark Earth, ADG-FRS-AMBI-FDE , MPN: ADG-FRS-AMBI-FDE , UPC: 850079014077 , Code: 99-FRX-OPMFRS-ADG-FRS-AMBI-FDE
  • OpticsPlanet Exclusive OPMOD Atrius Ambidextrious Forced Reset Selector, Olive Drab Green, ADG-FRS-AMBI-OD , MPN: ADG-FRS-AMBI-OD , UPC: 850079014039 , Code: 99-FRX-OPMFRS-ADG-FRS-AMBI-OD

OpticsPlanet Exclusive OPMOD Atrius Ambidextrious Forced Reset Selector Unavailable & Discontinued Models

List of Unorderable Models

  • DEMO, OPMOD Atrius Ambidextrious Forced Reset Selector, Olive Drab Green, ADG-FRS-AMBI-OD , MPN: ADG-FRS-AMBI-OD-DEMO , Code: 99-FRX-OPMFRS-ADG-FRS-AMBI-OD-DEMO-OB-A
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Last updated 2026-11-02 UTC.