Originally posted by u/Print-a-22 at 2024-11-14T17:55:09Z

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This thing is a ton of fun. Definitely make sure you file your extractor groove before gluing your liner into the barrel, as it’s really difficult to do well once it’s glued in. I’ll be reprinting a barrel to follow my own advice. Speaking of best practices, if you use the threaded barrel, print at an angle. I printed vertical and my can was too heavy and broke the plastic threads off, hence the exposed liner at the tip.

If you’d like to build one, hardware kits are available at my username dot com, and ready to ship including all laser cut parts. Kits are BYOBarrel, so you either need an RS22, or any length chambered barrel liner.

  • Noah@fosscad.ioOPMBEnglish
    1·
    2 months ago

    u/kaewon · 2024-11-14 20:45:47 UTC · score 14

    FYI if RS22/RB22 barrels are out of stock from rossi, you can find plenty on ebay along with mossberg 702 barrels which are the same. Good for all my other projects and future ones too.

    Liner does have an advantage of being lighter and cut to any length but I know some people don’t want to chamber liners.

    • Noah@fosscad.ioOPMBEnglish
      1·
      2 months ago

      u/tankspikefayebebop · 2024-11-15 04:19:30 UTC · score 2

      Do you think it would be possible to cut down a mossberg 702/RS22/RB22 to 8"-10" and then thread it? I feel as if its less to have a baffle strike incase the thread adapter comes off or something drastic?

      • Noah@fosscad.ioOPMBEnglish
        1·
        2 months ago

        u/kaewon · 2024-11-15 04:48:29 UTC · score 3

        If you have the tools to do it, go for it. Even if someone didn’t need threads and just wanted a shorter barrel, they could cut it. Following all laws of course.

    • WynoEnglish
      1·
      16 days ago

      Just came back in stock and code BF2025 brings the cost down to $35 + tax and FS. $37 for a barrel shipped to FL is hard to beat.

    • Noah@fosscad.ioOPMBEnglish
      1·
      2 months ago

      u/NoNefariousness8370 · 2024-11-15 03:49:22 UTC · score 3

      I have zero experience with either, but this thing is definitely more modular and despite being an “open beta” seems like a more refined design.

  • Noah@fosscad.ioOPMBEnglish
    1·
    2 months ago

    u/Helpful-Cauliflower4 · 2025-01-27 12:25:32 UTC · score 1

    Hi!
    I’m having a problem when I thread on the handguard all the way it pushes the barrel assembly too far back so the bolt can’t be locked…
    What am I doing wrong here?

    • Noah@fosscad.ioOPMBEnglish
      1·
      2 months ago

      u/Print-a-22 · 2025-01-27 14:15:00 UTC · score 1

      If the kit came from me, send me a dm with your order #. A few early orders went out with the reinforced ring out of spec, too thick…this may be what’s causing your issue, and if so, I’ll send replacement parts no charge

    • Noah@fosscad.ioOPMBEnglish
      1·
      2 months ago

      u/Print-a-22 · 2024-11-14 20:37:08 UTC · score 5

      I do too. While my real steel bolt guns can be a bit boring, I can honestly say shooting this was some of the most fun I’ve had at the range lately

  • Noah@fosscad.ioOPMBEnglish
    1·
    2 months ago

    u/noba69 · 2024-11-17 16:05:27 UTC · score 1

    since this is still fresh, what are the odds that an RS22M barrel would work and turn this into a 22WMR bolt gun?? They look the same, i’d just be worried about length of pull since the 22mag is slightly longer than 22lr

  • Noah@fosscad.ioOPMBEnglish
    1·
    2 months ago

    u/BruleArms · 2024-11-15 21:41:09 UTC · score 1

    Just a heads up for those that might go the rs22 route, there’s 3dp threaded barrel adapters floating around the net that screw into the front sight screw holes. There’s a few plain ones on the sea (check for the baby barrett rs22) but also a paid one on Cults with a picc rail.

  • Noah@fosscad.ioOPMBEnglish
    1·
    2 months ago

    u/SaltCall2237 · 2024-11-14 18:43:06 UTC · score 5

    what size barrel liner is that one? i know you have a 10" but then do custom…but then you have some other available options via the baby barrett. ty in advance!

    • Noah@fosscad.ioOPMBEnglish
      1·
      2 months ago

      u/Print-a-22 · 2024-11-14 18:44:15 UTC · score 6

      This one was like 5.75"… just a random length I had laying around

      Happy to cut whatever length you want

  • Noah@fosscad.ioOPMBEnglish
    1·
    2 months ago

    u/nochilljosh · 2024-11-15 01:04:39 UTC · score 2

    Would epoxying on a break muzzle device or a thread adapter eliminate that issue with weak threads?

    • Noah@fosscad.ioOPMBEnglish
      1·
      2 months ago

      u/Print-a-22 · 2024-11-15 01:09:03 UTC · score 2

      It could help…Kaewon also noted in guide to make sure to get a lot of jb weld under the threads and I didn’t do that. Will follow directions better on attempt 2

    • Noah@fosscad.ioOPMBEnglish
      1·
      2 months ago

      u/kaewon · 2024-11-15 04:25:04 UTC · score 2

      Possibly depending on how it’s done. The issue he experienced was bad attachment to the liner. Rough of the liner surface and make sure there is enough epoxy should work for most devices. I haven’t had issues with my kvp modular comp ez can. If you can maximize surface area of the liner attached to the muzzle device, it would require more force to remove. With threads, that means more threads which isn’t really possible for most muzzle devices. Or use a muzzle device that attaches onto more liner length.

      Another alternative that is used on other designs is a thicker barrel sleeve so the printed part alone has the strength to hold 22, which doesn’t require much, rather than relying on the epoxy. Others have done this along with a metal adapter to have metal threads.

      Anyone who has printed small threads know they are kinda terrible. It’s best to screw whatever on and just leave it. It’s one of the reasons I made QD for ez cans so you can just attach a brake and leave the threads alone.