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Atrius Forced Reset Selector
Atrius Forced Reset Selector (Super Selektor) for AR-15, assembled side view showing the selector shaft, spring and ergonomic lever
Atrius Forced Reset Selector parts laid out: detent shaft with spring, cam lever, ergonomic selector lever and T10 lever screw

$199.00

2 in stock

🚚 Ships to your door — most orders leave same or next business day.
Product Code: ADG-FRS-S Categories: , , , , Brand:

Single-sided 3-position Atrius forced reset selector (the “Super Selektor”): Safe / Semi / Super-Semi. Requires a full-profile (M16) bolt carrier, an H2 or H3 buffer and a mil-spec trigger with a squared-off trigger bar. No FFL — ships to your door where legal.

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Product Description

The Atrius Forced Reset Selector (Atrius FRS, often called the Atrius “Super Selektor” or Atrius super safety) is a drop-in AR-15 safety selector with three positions: Safe, Semi and Super-Semi. In the third position it forces your existing trigger to reset after every shot, so you get forced-reset speed without replacing your trigger group. This is the single-sided model with Atrius’s ergonomic switch, the first forced reset selector Atrius released, in May 2025. It ships to your door with no FFL.

  • What it is: a 3-position forced reset selector (“super safety”) for the AR-15: Safe / Semi / Super-Semi.
  • What it fits: mil-spec AR-15 lowers in .223/5.56 and .300 Blackout with a low-shelf or full-profile trigger pocket.
  • What your rifle needs: a full-profile (M16) bolt carrier, an H2 or H3 buffer, a carbine-length buffer tube and a mil-spec trigger with a squared-off trigger bar.
  • Build: heat-treated 4140 steel, corrosion-resistant black nitride finish, made in the USA. Single-sided lever.
  • Rounds per pull: one, in every firing position. Not a binary trigger and not a machine gun.
  • Ordering: a part, not a firearm. No FFL, ships to your door in states we can ship to.

How the Atrius forced reset selector works

In Safe and Semi, the Atrius FRS works like a standard AR-15 selector. Rotate it to Super-Semi and a cam on the selector shaft engages: as the bolt carrier pushes the hammer back, that movement is transferred through the selector to push your trigger forward to its reset point. Keep steady pressure on the trigger and it is ready for the next shot almost immediately. You still pull the trigger once for every round.

Compatibility checklist

Lower receiver Low-shelf or full-profile trigger pocket. Not compatible with high-shelf lowers.
Bolt carrier group Full-profile (M16) BCG required
Buffer H2 or H3
Buffer tube Carbine length. Pistol-length tubes are not compatible.
Trigger Mil-spec trigger with a squared-off trigger bar. Not compatible with triggers that have a U-notch or relief cut. Geissele SSA/SSA-E/G2S owners need the G-Lever model.
Calibers .223 / 5.56 NATO and .300 Blackout AR-15s
Not for AR-10 / SR-25 without significant gunsmithing; AR-9 may need a gunsmith; rifles already modified to “super safety” specs
Lever screw T10, 4-40 thread; Atrius recommends 15 in-lb with blue thread locker

Need a carrier? We stock M16-profile bolt carrier groups from Rankin Industries, Daniel Defense and Faxon, plus buffers and buffer tube kits.

Installation in brief

  1. Unload the rifle and confirm the chamber is empty.
  2. Remove the pistol grip, selector spring and detent, then the original selector.
  3. Insert the Atrius detent shaft from the right side about halfway, fit the spring and cam lever, then push the shaft through.
  4. Reinstall the detent, spring and grip, and fit the lever with the T10 screw.
  5. Run Atrius’s binding test with the upper off and a full function check before live fire.

The buffer tube stays on. Full steps, the binding test and troubleshooting are in our Atrius forced reset selector guide.

Compare Atrius forced reset selectors

Model Levers Choose it for
Atrius Forced Reset Selector (this page) Single-sided, ergonomic Compatible mil-spec triggers; the lowest-cost Atrius model
Atrius Mil-Spec Ambi Ambidextrous, mil-spec style Left-handed shooters or a traditional look on both sides
Atrius G-Lever Ambi Ambidextrous Geissele SSA, SSA-E and G2S triggers
Rare Breed FRT-15L3 Includes its own ambi selector Triggers that are not selector-compatible; replaces the whole trigger group

Not sure whether a selector or a full forced reset trigger suits your rifle? Read super safety vs FRT, or browse all forced reset triggers and selectors.

How ordering works

Western Sport has been a licensed FFL/SOT dealer since 2007. The Atrius FRS is a part, so it ships straight to your door with no FFL transfer, and we check every address against our restricted-state list before it ships. Questions about your trigger or carrier before you order? Send us a message.

Shipping Restrictions

This item ships to most U.S. states. State and local laws on forced-reset and rapid-fire devices vary and continue to change, so we do not ship this product to any state or jurisdiction where its legality is restricted, disputed, or dependent on the carrier. The list below is deliberately conservative: if there is meaningful risk, we do not ship there.

States and jurisdictions we do not ship to

  • California
  • Colorado
  • Connecticut
  • Delaware
  • District of Columbia
  • Florida
  • Hawaii
  • Illinois
  • Iowa
  • Maryland
  • Massachusetts
  • Minnesota
  • Nevada
  • New Jersey
  • New York
  • Oregon
  • Rhode Island
  • Virginia
  • Washington
  • U.S. territories
  • International destinations

Florida and Minnesota restrict retail sales of these devices, and shipments into Iowa and Virginia depend on carrier and distributor policy rather than on a settled rule. We treat all four as no-ship states. Municipal bans such as Chicago, Illinois and Denver, Colorado sit inside states already on the list above.

State statutes and retail shipping policies change frequently. Always verify current local legislation and consult legal counsel prior to shipping. If you are not sure whether we can ship to your address, send us a message before you order and we will tell you before we take your money.

Atrius forced reset selector FAQ

Is the Atrius forced reset selector the same as the Super Selektor?

Yes. Atrius Development Group sells it as the Forced Reset Selector (FRS) or Forced Reset Safety; many shooters and retailers call it the Atrius Super Selektor, Super Selector or Atrius super safety.

Is the Atrius forced reset selector legal?

It fires one round per function of the trigger. There is no federal statute or ATF rule written specifically for forced reset selectors, and after the May 2025 DOJ settlement with Rare Breed Triggers, forced reset devices that fire one round per pull are not being treated as machine guns. Several states restrict them, and we do not ship to CA, CO, CT, DE, DC, FL, HI, IL, IA, MD, MA, MN, NV, NJ, NY, OR, RI, VA or WA. This is not legal advice.

What buffer do I need for the Atrius FRS?

An H2 or H3 buffer. Atrius lists it as a minimum and says most light primer strikes come from a buffer that is too light; move up one weight if you see light strikes or bolt bounce.

Will my trigger work with the Atrius forced reset selector?

It will if it is a mil-spec style trigger with a squared-off trigger bar at the rear. Triggers with a U-notch or relief cut are not compatible. For Geissele SSA, SSA-E or G2S triggers, use the Atrius G-Lever model instead.

Why is my trigger dead in the third position?

Atrius points to two causes: a bolt carrier that is not full-profile, or a trigger bar with a relief cut or U-notch. Confirm an M16-profile carrier and a squared-off trigger bar.

Do I need to remove the buffer tube to install it?

No. You remove the pistol grip and the old selector; the buffer tube stays in place.

Specifications and compatibility from Atrius Development Group. Western Sport is a retailer, not the manufacturer.

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