9mm cans smaller than 1.3" dia

Discussion in 'NFA - Stamp collecting' started by Timfoilhat, May 4, 2020.

  1. Timfoilhat

    Timfoilhat Active Member Benefactor Life Member

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    I've found two so far, a Surefire and Dead Air Odessa. Are there any others? This is for a PCC and the rail is 1.3" inside so I need to find all the small cans that will fit. This is a dedicated install.
    1/2x36 threads too.
     
  2. BigWaylon

    BigWaylon Head philatelist Staff Member Benefactor Charter Life Member

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    I went Form 1 when I needed something similar.

    Thompson Machine Poseidon is another 1.25” option. It is available in 1/2-36.
     
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  3. BigWaylon

    BigWaylon Head philatelist Staff Member Benefactor Charter Life Member

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    AAC Evolution was 1.25”, but you’d need to find a used one or a demo model somebody still had. It’s probably the quietest option of that diameter.
     
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  4. BigWaylon

    BigWaylon Head philatelist Staff Member Benefactor Charter Life Member

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    And just so you don’t run into the same issue I did. Is it a PSA 9mm Upper by chance?
     
  5. Timfoilhat

    Timfoilhat Active Member Benefactor Life Member

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    Add on question. If I don't see a 1/2-36 thread option, are the $20 adaptors you see online acceptable solutions?
     
  6. Timfoilhat

    Timfoilhat Active Member Benefactor Life Member

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    Nope. Foxtrot Mike. I can't change the hand guard because it's a forward/side charger and there a trolly and op rod in the hand guard. 8.5" barrel and 10" hand guard.
     
  7. BigWaylon

    BigWaylon Head philatelist Staff Member Benefactor Charter Life Member

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    To go 1/2-36 to 1/2-28? I used one on my AR-9 for awhile. I also used a 1/2-28 to 1/2-28 (the new male threads were shorter and had o-ring engagement for my Spectre II) on my AR-57. Both were Silencerco brand.

    Adapters can lead to tolerance stacking issues, but some are well made and work fine.
     
  8. BigWaylon

    BigWaylon Head philatelist Staff Member Benefactor Charter Life Member

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    Cool. My PSA one was 1.34”...but only for the first inch or so. It was actually smaller (due to being square) the rest of the way and I had the inside of the rail bored out.
     
  9. BigWaylon

    BigWaylon Head philatelist Staff Member Benefactor Charter Life Member

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