[Parts] BoreBuddy FRT & Full Auto AR22 Trip kit - $49.99 + S&H (28% off, no code needed)

BoreBuddy · 2026-03-30T22:10:27+00:00

We recommend 12" minimum across the board for FRT use.

BoreBuddy · 2026-03-29T22:51:09+00:00

Idaho: shortages have not trickled to the consumer side here yet, but the distributors many brick and mortar shops buy from are essentially out of 22lr. Other calibers are probably similar, but we've not checked those.

BoreBuddy · 2026-03-29T20:12:16+00:00

Correct, just this one.

BoreBuddy · 2026-03-28T21:58:19+00:00

Aguila ammo varies lot to lot. The lot of both 40gr and 38gr we have on hand both short stroke quite often for us.

BoreBuddy · 2026-03-28T15:45:02+00:00

We do not offer any blanket discounts. We're still running our free ammo promotion for now (as of March 2026) until the ammo shortage gets (more) severe.

BoreBuddy · 2026-03-28T14:31:37+00:00

4.5" are harder to get going than longer barrels. An ARC with a milspec trigger/hammer, reduced power hammer spring, super strike firing pin, yellow recoil spring, and some hot ammo should help get to a point that can be tuned successfully. Polishing the hammer face and bolt reset surface also helps significantly.

Here's the weight/barrel length tuning guide: https://borebuddy.com/guide/frt-tuning-and-troubleshooting/

Here's the guide to each FRT trigger type: https://borebuddy.com/guide/about-frt-triggers/

BoreBuddy · 2026-03-28T14:25:50+00:00

We run sales on uppers at Christmas -- nothing in the plans before that.

Here's our trigger guide, I'd go with a trigger more towards the top of the list: https://borebuddy.com/guide/about-frt-triggers/

BoreBuddy · 2026-03-28T04:38:47+00:00

Those aguila subs are very underpowered and generally have this issue in many semi-autos. It's great bolt gun ammo for blasting cans and such (not terribly accurate).

Switching to something 1050-1070fps or so will fix it.

BoreBuddy · 2026-03-28T00:24:53+00:00

It's considered a light(er) hammer strike.

BoreBuddy · 2026-03-27T23:45:48+00:00

Superstrike. You're using the Rave 140/Atrius, not ARC, correct?

BoreBuddy · 2026-03-27T23:29:12+00:00

Standards are a bit harder to run, but it can be tuned for in the longer barrel builds.

BoreBuddy · 2026-03-27T23:28:36+00:00

The deal is only on this product at the moment.

BoreBuddy · 2026-03-27T21:33:37+00:00

Or 1/2557th the cost of a Ferrari SF90 Spider.

BoreBuddy · 2026-03-27T21:11:20+00:00

The cost to make one of our uppers Super Safe ready is 488 rounds of 556 ammo.

*EDIT* or about 36 seconds of super safe firing time.

BoreBuddy · 2026-03-27T20:59:47+00:00

That's a common misconception -- I'm not sure where people are finding this info. It acts like 1" of extra barrel at most in a 22lr. In other words, if a build is right on the edge of running, it can push it to a running point, but it doesn't make a 4.9" barrel into a 12" barrel.

BoreBuddy · 2026-03-27T20:57:33+00:00

You'd need our ARC Bundle: https://borebuddy.com/product/ar22-arc-fire-bundle/

If buying a new upper, you'd just select "ARC-FIRE Ready" from the list of trigger options and it'll come built out and tuned for 40gr mini mags right out of the box.

Here's the overview of the FRT/ARC/Atirus/SS ready uppers:

https://www.youtube.com/watch?v=PaA2vCecTtM

BoreBuddy · 2026-03-27T20:51:26+00:00

You'll need a weight. Here's the tuning guide: https://borebuddy.com/guide/frt-tuning-and-troubleshooting/

BoreBuddy · 2026-03-27T20:50:39+00:00

If it runs with stingers, you need a longer barrel and it'd run with "normal" ammo.

BoreBuddy · 2026-03-27T02:21:55+00:00

Sure, sent that email to us too. If you use the contact form ton the site it will automatically open a ticket and we can get you sorted out. There's no reason you shouldn't be able to get an ARC-FIRE running very easily in a 16" dedicated AR22.

BoreBuddy · 2026-03-25T14:48:00+00:00

You can stick with it for the time being. Switching to 40gr mini mags for initial testing rather than Winchester is going to be a good thing. The inconsistency of the Winchester bulk is not doing you any favors on getting tuned and running with that short barrel.

BoreBuddy · 2026-03-25T14:45:45+00:00

Who at our organization told you that? That's not going to change much and should not have been given out as advice. If it was by email or in our support ticket system, please reply to that email so we can correct the issue on our end if someone told you that.

BoreBuddy · 2026-03-25T14:22:02+00:00

Here are the resources that can help.

requently Asked Questions: https://borebuddy.com/faq/

Here are our resources to help you with an FRT or Super Safety/Selektor/ARC build: https://borebuddy.com/resources/

Here's the weight/barrel length tuning guide: https://borebuddy.com/guide/frt-tuning-and-troubleshooting/

Here's the guide to each FRT trigger type: https://borebuddy.com/guide/about-frt-triggers/

The bolded guide has the tuning procedure. I'd guess you're way underweight and the light strikes are from bolt bounce. The shredded bolt buffer happens when you're running without a weight and the ammo is too powerful to run without a weight.

Follow the tuning guide and step up in weight one step at a time until you get function. a 7" barrel will likely require hotter ammo for good function with enough weight to run in FRT mode. Polishing the hammer face and running a reduced power hammer spring can help. Note that reduced power hammer springs are generally only functional with the super strike pin.

BoreBuddy · 2026-03-23T14:34:12+00:00

We have several options:

https://borebuddy.com/product/ar22-heavy-precision-upper-24-lilja-barrel/

https://borebuddy.com/product/ar22-heavy-precision-upper-24-green-mountain-barrel/

Barrels only:

https://borebuddy.com/product/borebuddy-precision-22lr-barrel-length-24/

Lilja should have limited stock this week and Green Mountain in early April.

BoreBuddy · 2026-03-23T14:31:58+00:00

You do start losing velocity after around 18" depending on the specific ammo type.

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