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Piston AR question

Discussion in 'Black Rifle Forum' started by OUSooner, Jan 28, 2010.

  1. OUSooner

    OUSooner

    1,271
    36
    Jan 22, 2004
    Oklahoma
    Can you use a .22 conversion kit in these?
     
  2. AcenJay

    AcenJay

    257
    0
    Dec 21, 2003
    Miami, FL
    Those .22LR conversions are meant to work with the standard DI rifles, whereas the piston rifles each use their own BCGs, so unless the .22 kit is specifically designed for the piston system being used, I'd say no.
     


  3. jbremount

    jbremount

    873
    0
    Apr 17, 2005
    Texas


    The .22 conversion kits can be used with the Piston kits. Some pistons kits are easier to use with the conversion kits than others as there is not a single standard piston design. Basicially (1)one has to to is take out the piston rod and (2)turn the piston regulator to off. (3)Replace the piston carrier and bolt with the .22 conversion kit .

    With some piston kits such as Adams Arms, CMMG,STag,etc...steps (1) and (2) can be easily and quickly done from the front of the gun. Research/call/email the manuf of the piston kit you are interested in and enquire about the use of .22 conversion kit with their particular piston kit. Get it from the horses mouth.
     
    Last edited: Jan 28, 2010
  4. AcenJay

    AcenJay

    257
    0
    Dec 21, 2003
    Miami, FL
    Come to think of it, the .22LR conversions operate by blowback, don't they? So I guess it doesn't really matter whether it's a DI or gas piston upper, because it doesn't operate with either.
     
  5. Kentak

    Kentak

    3,781
    289
    Jan 8, 2006
    Central Ohio
    Now you got me wondering. In the major 22 conversion systems, how is the gas coming through the gas tube handled? Blocked? Vented? Or, what?
     
  6. AcenJay

    AcenJay

    257
    0
    Dec 21, 2003
    Miami, FL
    I'm guessing that the gas tube just gets fouled up by the .22 ammo, but doesn't play a part otherwise in the operation.
     
  7. pcar

    pcar

    75
    0
    Sep 21, 2009
    Or what.

    The gas from the .22 still goes down the gas tube, and in to the 'upper'.

    It's suggested you shoot some 5.56/.223 after the .22 to blow everything out.