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Form 1 .30cal suppressor I made for $398 (incl stamp)

Thread in 'Class III & NFA Discussion' started by drsmile, Feb 21, 2015.

  1. drsmile

    drsmile ODT Junkie! Supporter

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    So a friend and I came up with the crazy idea to create our own can similar to the one we found on an ARFCOM thread. We filed our Form 1's, and they came back in 36 days (incl Christmas eve, Christmas and new years). Not a long wait at all.

    We ordered all the parts and got together in my basement today to build. I had folks warn me that the can won't sound as good as a commercial can. Well, I decided that a few Db's was worth $800 in savings. Now that it is built, I will tell you from first hand experience that it sounds every bit as good as my Liberty Mystic. I am not bashing the Mystic, it is my favorite can; but this one honestly sounds as good. It is shorter than the Mystic, weighs less than the Mystic, and costs a lot less than the Mystic. It took me about 2.5 hrs to build and only 1 month to wait for. Basically any bore size is able to be created, I just did a .30 to use with .308 and 300blk.

    The materials used were Ti for the tube and spacers. Al endcaps (which could also be Ti if I want), and steel baffles (engine block freeze plugs).
    The final can weighs in at 16.01oz and is 8 1/16" without a brake. It will support full auto.

    Here are some picks of the build and I will post some videos of it in action. I plan on building more cans with varying bore sizes. I am $400 lazy enough to want a dedicated can for my main weapons so I don't have to take them off for another weapon.

    Here are the steps in a very shortened version:

    First we cut the baffle bore with a centering tool and 1/8 bit. We then pressed the baffle with a 45 taper, then a 60. Finally we cut the bore to .368 with a bit. Also cut the end cap bore. Every baffle and end cap was checked and re-checked with mike's by two people.

    Next we cut the Ti spacers and blast chamber; then sanded the OD to fit perfectly in the tube ID.

    Next we test fit and verified the bore lined up with the firearms bore.

    Finally, we engraved them at my office with a 1/4mm bit and my dental drill.

    Test fired, and everything worked! The can is very quiet with .22lr, 300blk, hearing safe with 223, 223fa, and 308. I plan on making a 9mm can and possibly a 22.

    Feel free to ask questions, berate and denigrate, congratulate, etc... I am pleased with my investment and plan on doing more. The price is right, the quality is good, it is able to come apart for cleaning , is comparable to commercial cans, and is a fun weekend project.

    DSC02530.JPG
    Materials

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    Cutting 1/8" bore

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    Pressing 45 degree taper

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    Pressing 60 degree taper so the bore is .350-.360. (Larger is ok, but will allow more gas to escape for a .30cal)

    DSC02545.JPG
    Final drill the bore to .368

    DSC02540.JPG
    Sanding OD of Ti spacer. Spacers were cut using pipe cutter. Various sizes were used to stagger the baffles. The blast chamber took the longest "spacer".
     
    Last edited: Apr 16, 2015
  2. GreenPanther

    GreenPanther The Hen that laid the Golden Legos

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    Thanks for the write up, I was talking with someone about this just the other day and was about to order some parts.
     
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  3. batoncolle

    batoncolle The Hen that laid the Golden Legos

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    Looks great and thanks for posting. I've been following the thread on arfcom, and that's the one project I have been wanting to find the time to do.

    Do you have any pics of it mounted?
     
  4. jburton3

    jburton3 ODT Junkie!

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    Sweet. Id like to see the videos once you get them up. Will you post pics of the final product?
     
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  5. Fear Itself

    Fear Itself ODT Junkie!

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  6. drsmile

    drsmile ODT Junkie! Supporter

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    DSC02542.JPG
    Baffles, some stacked with spacers. Tube and brake to the left. Blast chamber spacer on bottom, baffle, first spacer, baffle, etc....

    DSC02543.JPG
    All the baffles, spacers, and end caps after first test firing 5 rds of 300blk subs.

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    Cutting turbulence notches in the baffles. This is optional. I cut notches in the first 6 baffles, I left the final 4 baffles un-notched.

    DSC02548.JPG
    Completed can taken apart and laid out. O-rings and anti-seize can be seen on the end caps.

    DSC02549.JPG
    Assembled can next to a Mystic. Shorter, lighter, seemingly as quiet.

    Next I will abrasive blast the can, paint with VHT flameproof (I do not intend to use this with FA as I have other cans for that).

    Sorry about the split-up thread, it took time to upload everything.
     
  7. drsmile

    drsmile ODT Junkie! Supporter

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    Sorry, I did not video (I am the one shooting the Mystic) and my buddy DID NOT HOLD THE PHONE CORRECTLY!!!!



    Here, my son HOLDS THE PHONE CORRECTLY!!

    No muzzle flash!!
     
    Last edited: Feb 21, 2015
  8. whocares5254

    whocares5254 Frontiersman

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    This is ****ing awesome.
     
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  9. GreenPanther

    GreenPanther The Hen that laid the Golden Legos

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    Did you buy the brake with all of that? Was it somewhat of a kit or did you have to source the parts from multiple places?
     
  10. drsmile

    drsmile ODT Junkie! Supporter

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    I got the tube, muzzle brake, end caps from SD Tactical. Spacer tube from Ti Joe. Tools, etc... from various places like McMaster, Grainger....

    SD is awesome. They are adding items daily and will soon be a one-stop shopping place...
     
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