Complete Lower Receiver - Single/Ambi/M16 ATRIUS Selector - Forced Reset Trigger - Adjustable Stock

Complete Lower Receiver - Single/Ambi/M16 ATRIUS Selector - Forced Reset Trigger - Adjustable Stock

Availability:
All orders are shipped and packaged within 1 to 3 business days unless otherwise noted on the product page. If there is an expected delay, we will contact you.
$449.99
(1 review)
Width:
16.00 (in)
Height:
10.00 (in)
Depth:
6.00 (in)
Current Stock:
Adding to cart… The item has been added
Description
DISCLOSURE - Due to Rarebreed relentless pursuit of small companies and working with the ATF and against the 2A community, after these are sold out, they will not be restocked.
 
This product is BUILT TO ORDER - Shipping will occur from 7 to 10 Business Days after purchase.
 

Atrius Forced Reset Selectors (FRS), also known as Super Selektor or Super Selector devices, are selector-based "super safety" systems for AR-15 platforms (primarily .223/5.56/.300 BLK). They replace the standard safety selector with a 3-position design (SAFE, SEMI for normal semi-auto, and SUPER-SEMI/FULL-SEMI for forced reset mode). This uses a cam/trip arm mechanism that mechanically forces the trigger to reset via BCG movement, enabling faster follow-up shots while keeping your existing mil-spec or compatible fire control group (FCG).

* Heat-treated 4140 steel with corrosion-resistant black nitride finish for durability in harsh conditions.
* Mechanically leveraged for reduced wear on internals compared to full FRT cassette triggers; drop-in install (minor fitment sometimes needed).

Standard/Single Switch: Basic right-side lever (textured ergonomic or mil-spec style).
Ambi Switch: Fully ambidextrous levers for left-handed or versatile shooting.

Kit Includes:

  • Myth Industries Lower Receiver
  • Buffer of Your Choice
  • Trigger Shoe of Your Choice
  • Butt Stock of Your Choice
  • Anti-Walk Pins
  • Mil-spec Lower Parts Kit
  • Ambidextrous Magazine Release
  • Enhanced (Oversized) Bolt Catch
  • AUTHENTIC Atrius Selektor FRT Trigger of Your Choice

Atrius Selector FRT: Information and Installation Guide

IMPORTANT NOTES:

NO REFUNDS OR EXCHANGES FOR FRT TRIGGERS ONCE INSTALLED OR USED.

YOU ARE REQUIRED TO UNDERSTAND AND KNOW THE LEGALITY OF THIS PRODUCT IN YOUR AREA AS THIS IS A HIGHLY CONTESTED PRODUCT AND LAWS CHANGE ALMOST DAILY. 

-        By purchasing from Myth-Industries, you agree and have read and understood that you release Myth Industries LLC from any liability for legal issues that may arise from the use or inability to use any of the products on this site.

-        By purchasing from Myth-Industries, you agree and have read and understood that Myth Industries LLC does not and will not provide guidance on your local laws or imply otherwise anywhere on this site. That is solely the responsibility of the purchaser. Should you have any questions regarding your local laws, please contact your local Attorney General’s Office or Local ATF branch for further guidance.

Warranty
Assembled Lowers are sold as in and are not refundable or returnable once used. We stand behind our products. If you are not happy with your purchase, please contact us within 30 days to request a refund or replacement. Please contact us within the return window for a refund or replacement. We cannot accept items out of our return window.
Additional Information
Color:
Black
Caliber:
5.56/.223
Platform:
AR-15
Feature:
Forced Reset (FRT) Trigger
ffl_type:
firearm

Reviews

  • 5
    Myth industries assembled frt lower

    Posted by Chris w on May 11th 2026

    Great product! Worked well right out of the box with no tuning needed at all, it even arrived a day early.