Please Note:
Lead time is currently 4-6 weeks.
*ETA is 4-6 weeks from placement of order.
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 AR15 (chambered in .223/5.56/.300 BLK) fire control groups and no modifications required. The Atrius FORCED RESET SELECTOR (Single) isn’t just a safety, it’s an advantage.
For all notes on Compatibility GO to our Compatibility Page here.
Legal Notice and Disclaimer: When buying this product you are affirming that you understand all federal, state, and local gun laws that apply to you. Laws surrounding firearms and their parts or accessories vary between each state so it is your responsibility to know what is legal in your area.
Atrius Development Group does not guarantee that our products are legal where you live, and we are not responsible for any misuse, illegal activity, or violations of the law by customers. By completing your purchase, you agree that you are complying with all applicable regulations.
Restricted States: CA, CT, DE, FL, HI, IL, MA, MD, MN, NJ, NV, NY, OR, RI, VA, WA, D.C., No US Territories. No international orders.
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!!!!
Works wonderfully! https://imgur.com/a/4FwbORo
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.
Was a little worried that it wouldn't work due to bcg but it chopped away smoothly and effectively. I highly recommend this product!
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.
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.
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
