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Best 22lr conversion kit for the AR Platform

Discussion in 'Rifle Country' started by possum, Feb 11, 2009.

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  1. possum

    possum Member

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    i have a bushmaster ar and want a 22 conversion kit, the best that i can get. any help would be greatly appreciated. thanks.
     
  2. 1832

    1832 Member

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    IMHO, Spikes Dedicated Upper or Spikes Conversion kit.
     
  3. possum

    possum Member

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    i will look into that thank you.
     
  4. jpwilly

    jpwilly Member

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    CMMG sold at Brownells
     
  5. gvnwst

    gvnwst Member

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    1+ on the spikes upper/conversion kit. Mine dedicated upper is uttterly reliable, and more accurate than i am.
     
  6. jpwilly

    jpwilly Member

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    A dedicated upper isn't a conversion kit it's practically a 22lr rifle minus the FCG. A drop in bolt on the other hand is a "conversion kit". So OP which one are you asking about? Dedicated uppers are also usually quite a bit more $450+ Nothing against them in the end a better 22lr AR.
     
  7. possum

    possum Member

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    i would prefer to go the conversion kit route, just replace the bolt mags and etc. the cheaper route for sure, and as long as it shoots good and is relibale enough for range work i will be happy.
     
  8. bratch

    bratch Member

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    I have a Spikes upper thats great.

    I've heard their conversion kits are good as well.
     
  9. mongo4567

    mongo4567 Member

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    I have a Spikes conversion on the way. The CMMG and Ciener are basically the same in function and reliability from what I've heard, but I chose Spikes because of the chromed bolt and o-ring seals.
     
  10. ArmedBear

    ArmedBear Member

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    Model 1 .22 upper here. Also a great gun. Reliable, fun, accurate.

    No chromed bolt, but it's not necessary. It does like Militec, just like a regular AR. Goes for a few bricks between cleanings if I want it to, as long as I don't let it get bone-dry.

    Model 1 uses the Ceiner bolt and magazine.
     
  11. Holling

    Holling Member

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    I had 2 CMMG kits.
    Kit 1) Bolt had cracks thru the weld.
    Kit 2) Chamber adaptor cracked at 700 rounds.
    CMMG's replacement lasted 70 rounds.
    Returned them both to Brownell's and bought one from Spikes. As soon as I get it I'll post a report.

    I do have a Cieners kit with 1000's of rounds and no issues. Cieners customer service is nonexistent so if it fails, it is a throw away.
     
  12. IndianaBoy

    IndianaBoy Member

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    I bought a cmmg kit a few weeks ago and already have three bricks of federal bulk through it. One single FTE with federal. Mine works great.

    It brings a new definition of filthy to my AR though.


    Worth it, IMHO. CMMG is local to me. I don't anticipate problems, but if something breaks I am 10 minutes away.
     
  13. RP88

    RP88 Member

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    what would the accuracy difference be between a drop-in .22lr kit and a .22lr upper? Would barrel twist with thedrop-in conversion drastically affect anything?
     
  14. Eightball

    Eightball Member

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    Here's another vote for Spike's. If you're going to do it, get one with less issues and more bang for your buck.
     
  15. jpwilly

    jpwilly Member

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    Yes, Actually thats a big part of it. 22 rifles are usually 1-16" (i think) Some AR's had 1-14 or 1-12" twist bbls and 22lr conversions will generally be more accurate in these. The newer 1-7" and 1-8" are too fast for 22lr. The 1-9" is still not optimal but will work.
     
  16. RP88

    RP88 Member

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    does the higher twist my ARs have for the drop-in make the gun either not work with such a conversion, or does it mean that it just won't be as tack-driving as the dedicated uppers?

    For example, I have a 16" bbl in 1x7 twist. Will it still shoot to an acceptable degree for general plinking? Or am I just asking for a waste of money and/or hurting my gun?
     
  17. mr2guru

    mr2guru Member

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    I've put several thousand rounds already through both of my CMMG conversions. No issues. Only a handful of FTE, and I'd blame that on the federal bulk pack ammo.
     
  18. railroader

    railroader Member

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    I have a ciener kit and I run it through a 1in9 barrel. It will shoot about inch and a half groups at 50 yards and the reliability has been great. Mark
     
  19. ArmedBear

    ArmedBear Member

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    Again, my Model 1 has had no issues, they deal with Ciener, not me, and it provides even more bang for the buck.:)
     
  20. RP88

    RP88 Member

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    what barrel twist do your ARs have with the drop-ins? Still curious on that. Sorry for asking like six times now.
     
  21. Dr. Tad Hussein Winslow

    Dr. Tad Hussein Winslow member

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    1 in 9". Again, works fine with everything, including standard loads AND, importantly, with Aguila SSS, which WON'T work in normal .22 rifles.
     
  22. IndianaBoy

    IndianaBoy Member

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    My drop in is running in a 1:9 upper. Unless you get into the super-fast varmint calibers... there really are very few problems with 'over spinning' a bullet.

    Too fast is better than too slow.
     
  23. K9-Bob

    K9-Bob Member

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    I have a Ceiner Conversion and have a Colt 14.5" barrel (Sabre A2 long flash hider installed) with a 1/12 twist. It is a very accurate and reliable setup.

    The typical .22 rifle uses a 1/16 twist. Tactical Solutions makes a dedicated upper that uses the 1/16 twist barrel also.
     
  24. HisDivineShadow

    HisDivineShadow Member

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    Spikes is the best conversion kit.

    A dedicated upper is ofcourse best. Not having accuracy gets boring fast. I love being able to make sub inch groups at 50 yards.
     
  25. bglz42

    bglz42 Member

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    I love my Ciener!
     
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