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Thread: Hole in ASA adapter

  1. #1
    Join Date
    May 2013
    Location
    SE Michigan
    Posts
    190

    Hole in ASA adapter

    I purchased an ASA on ebay. It was unused. It came today and there is a slight pin hole below the threads for the air connection that goes all the way through and out the very top of the inside threads. See pictures;

    DSC_1013.jpg
    DSC_1015.jpg

    I can't imagine that this serves a purpose. This is a machining error, right? Just want some feedback before I complain to the seller. It's no one from AO.

  2. #2
    Join Date
    Apr 2010
    Location
    triple mag shop.
    Posts
    2,889
    bleed hole for air when you unscrew a tank, its so the air escapes and releases the pressure.
    My sydarm weighs less than yours!!!

  3. #3
    Join Date
    May 2002
    Location
    West Coast
    Posts
    3,577
    Exactly what knm said. I bought a few of those from I&I on eBay and have had no problems. It should work great.

  4. #4
    Join Date
    Jan 2002
    Location
    Halifax, N.S., Canada
    Posts
    7,235
    That hole is a bleed hole as mentioned. It is located slightly behind the tank oring so that it will bleed off the air pressure once the tank is unscrewed far enough to release the pin on the regulator.
    Except for the Automag in front, its usually the man behind the equipment that counts.

  5. #5
    Remove a tank from the old ASAs before they started putting these on all of them, THEN you'll know what it's for

  6. #6
    Join Date
    Oct 2006
    Location
    Houston, TX
    Posts
    3,132
    I have drilled a similar hole in the old AGD back bottle adapters. Those really need it. Their depressor pin was long and the threads were razor sharp.

  7. #7
    Join Date
    Jan 2002
    Location
    southern IL
    Posts
    1,720
    Not as much needed today. But back in the 90s when we all used co2 they were a must. Everyone I know drilled there own. It kept the tank Oring from freezing and breaking.

  8. #8
    Join Date
    May 2013
    Location
    SE Michigan
    Posts
    190
    I was a little worried when I didn't see one on my classic mag. I guess I never noticed a problem w/o a hole because I use a gas thru grip. I thought it might be a bleed hole but wasn't sure. Thanks for schooling me before I embarrassed my self with the vendor.

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