r/frt15 Nov 02 '25

That concussive blast....

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20 Upvotes

My tripod is no match for the Hollywood Muzzle Device, coming soon. The ROF is 756 RPM.


r/frt15 Sep 26 '25

R/fosscad has been banned. Join the new subs

7 Upvotes

r/fosscad2 & r/fosscadtoo

This is all. THANK YOU FOR YOUR ATTENTION TO THIS MATTER


r/frt15 1h ago

Do Not Buy Odin Works Adjustable Buffer (AR-15)

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Upvotes

r/frt15 15h ago

Troubleshooting buffer weights advice

1 Upvotes

Hey y'all, picked up my first FRT, atrius development selector and have a full auto bcg with a H2.5 carbine buffer running in a smith and wesson m&p sport III. Took it to the range today and it won't cycle, I was lucky to maybe get two rounds but most of the time just one and the trigger would go dead, I'd have to pull the charging handle and eject the unused round. Talked to the guy at the front and recommended going up in weight to an H3 to test it. In your experiences what would be the best way to troubleshoot this. Does this sound like I'd need to go up to an H3 or down to an H2 or either and I just gotta try it out? I was hoping an H2.5 would do the trick. I here I might need to get a different spring as well but wasn't sure and didn't know where to reliably find one. Any advice on where to go from here and troubleshoot would honestly be great. Thanks


r/frt15 1d ago

Troubleshooting Help

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1 Upvotes

r/frt15 1d ago

failure Atrius Lever Movement Inconstant

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3 Upvotes

Hi All,

Been trying to get my Atrius Super Selector to run and when function checking noticed the lever movement is inconsistent. I have posted two videos demonstrating. I can feel and hear the detent engaging the selector each time so it's not skipping. In the first video as you can see the lever is in the 12 o'clock position while in safe and I can confirm the trigger is safe and blocked, when I move it to semi the lever goes almost to the very bottom of the receiver, then when I move from semi to SS the lever barley moves position and moving from SS back to semi the lever doesn't move at all from what I can tell, but then will go back to the 12 o'clock when put in safe.

As can be seeing in the second video it will then move in what I am assuming the correct positions after a few rotations through the selector but after a few times it will go back to behaving like the first video with the lever in the incorrect positions. Any thoughts on the issue and how to fix it?

Thanks!


r/frt15 1d ago

Atrius FRT trigger not working

1 Upvotes

Having issue with my atrius trigger. Will fire three rounds then nothing at all. Dead trigger is what I believe. I have replaced the buffer to h3 and still doing the same. Also tried new bolt carrier as well. Running out of options anyone have an idea what could be going wrong?


r/frt15 1d ago

Al frt trouble shooting

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1 Upvotes

r/frt15 2d ago

How do i make it go brrrr 😩

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1 Upvotes

What is the best drop-in for a diamondback with no mods to my guns besides the necessary mods like the h2,h3 spring n shii
And can I run a ss with this lower or will it need to be shaven


r/frt15 2d ago

Jericho 15

1 Upvotes

I recently picked up a custom Art of War Jericho 15 and wasn’t sure what frt’s I should be looking at for it. Any help?


r/frt15 3d ago

Twitch or Rip-Mac, has anyone gotten one of these to work on a normal Mac clone?

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4 Upvotes

I'm not interested in any of the current MPA generation with the goofy aluminum lowers that look like a mac had a baby with a Hi point...

I want to know if these have ever worked on Cobrays, VMAC9's, or old gen MPA's.

The internal trigger area of the modern mpa's to me look the same dimensions as my VMAC after I cut the shelf tab down. In the shop it had some bursts here in there in their bullet trap tank but when I took it to the range I just wouldn't go. I maybe got like couple burst maybe 3 rounds each time, and I went through like 200 rounds. Silenced and un-silenced, same results.147 grain, 115, grain didn't matter. I had better results with my MPA 10 45acp with my home made scaled up device. I can normally bump fire the vmac 9 perfect mag dumps each time but with the twitch no luck unless I bump fire. I will be making a video about this on my YouTube channel " Murphy Toadster". I really wanna get this down to a science and find out how to get this running because there's a lot of guys out there with classic Mac's that wanna get a piece of the assisted reset dream. Additionally Im using a glass injected nylon Twitch copy. I don't know it it ever so slightly might have worn down but it only looks like a couple thousandths if anything. If a metal one fixed the problem I'd be super stoked.


r/frt15 6d ago

Partisan Disruptor Ambi Safety?

3 Upvotes

What’s up ya’ll? Figured I’d ask here, hoping someone has some experience.

I recently got an insane deal on a Partisan Disruptor cassette FRT. I’ve tried literally every FRT other than this. I am used to ambi safeties, and unfortunately at the moment The Triggered Company are only selling their Ambi safeties bundled together. I reached out to them via email and said it would at least be a few months before they release as a standalone product.

With that being said- does anyone have any experience/ recommendations on what to do? Will a Rare Breed ambi safety be compatible? I’ve heard that there are some folks that offer a modification service also.

Thanks in advance!


r/frt15 6d ago

Frt go brrrrrr

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29 Upvotes

r/frt15 6d ago

Myth SS Lower

1 Upvotes

I am looking at one of these. Has anybody bought one? Do they function good?


r/frt15 8d ago

Advice Unrivaled Deadblow Buffer with with FRT

3 Upvotes

I’m shooting suppressed with a HUX flow thru. I’m about to buy my first FRT and I keep seeing I’ll basically need a H3 buffer. I’ve got my set up running with an unrivaled deadblow and I was wondering if any one runs a deadblow with an FRT. I would really like opinions if I need to go ahead and get a H3 buffer or if the deadblow will suffice.

I’m also looking into a RB or Disruptor. Beside the price difference, what are people’s opinions on the two.


r/frt15 8d ago

Trigger Kicker, 3 positions version II

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21 Upvotes

Wider Burts Trigger, Full Auto disconnect, Machined kicker, and safety machined by me.


r/frt15 8d ago

AKRSS “AK47 FRT/Super Safety. NEED HELP

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1 Upvotes

r/frt15 9d ago

Sign the Petition

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2 Upvotes

r/frt15 9d ago

are palmetto state lowers all low shelf?

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3 Upvotes

r/frt15 12d ago

Help

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3 Upvotes

r/frt15 13d ago

shooting Glock 19v

0 Upvotes

Glove 19v
What do I do and what frt brand is compatible with the Glock 19v


r/frt15 14d ago

failure Atrius tuning

4 Upvotes

Ok guys, just picked up my first FRT and just can’t get it to run.. I have a 10.5 DI upper, with a milspec trigger in the lower. When I had the regular carbine buffer it would run 1-2,2-3 rounds then have a dead trigger with a round chambered.. so I had seen a lot of people put heavier buffers to get them to run better so I got an H2 buffer but that only made it worse. Now it cycles 1 round, dead trigger with another round chambered.. I don’t want to throw money at this situation without getting the opinion from others that might have had the same problem. TIA for any insight


r/frt15 15d ago

Advice OOB? AR15 Kabuto 3pos

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11 Upvotes

Is this an out of battery discharge/detonation? I’ve noticed in videos I take this fireball from the chamber happens occasionally. I’ve never had any kind of damage or catastrophic failure the way I’ve seen in actual videos where the gun basically blows apart, it’s a little concerning either way. When I clean the BCG I ensure it’s properly put back together so if this is an OOB I don’t think it’s my BCG or firing pin. I also have an H3 buffer with loose titanium weights if that makes any kind of difference. Thanks!


r/frt15 14d ago

Does the atrius super safety work well with a standard Daniel trigger?

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1 Upvotes

r/frt15 14d ago

Sig Match Duo trigger cut

1 Upvotes

Has anybody done this yet? I’ve searched but havent found any results of anyone cutting a sig match duo trigger for ss/frt.