Advantage Arms .22LR Commander unit on full size ATI frame - 1911Forum
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  #1  
Old 05-18-2020, 09:00 PM
Trooper Joe Trooper Joe is offline
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Advantage Arms .22LR Commander unit on full size ATI frame

Just received my Advantage Arms .22 LR conversion unit for a 1911 frame. Decided to install it on my full size ATI .45 Mil Spec frame. (Photo shows the ATI full slide in front of the AA unit installed.)



Everything fit perfectly except for some very slight sanding on the bottom plate of the AA magazine. Snap caps and dummy rounds seemed to feed with no problem.



Will try get out to the range tomorrow and will report back.

Was going to put the unit on my Combat Commander but wanted to see how it looked and worked on a full size frame first. Unit looks like it was made for the full size ATI frame turning it into a neat “Commander” size .22 LR, 1911.

Trooper Joe
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  #2  
Old 05-23-2020, 09:10 PM
Trooper Joe Trooper Joe is offline
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Had a chance to function test this gun today. Have three magazines for it (two more added since I bought it which had to be lightly sanded also).

Tried CCI 40 gr solid point and they worked as expected. Then tried some CCI 36 gr hp which are not supposed to work but worked perfectly. Last I tried some Federal bulk pack which would not function at all. Seemed to be too low power to cycle the slide.

Ordered a 19# hammer spring which I will put in. Probably the bulk Federal stuff will function with that.

I also have a Walther/Umarex made Colt 1911 .22LR. This gun functions with everything including the Federal stuff.

I am glad I put this conversion kit on my ATI full size frame instead of messing up my Combat Commander.

Trooper Joe
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  #3  
Old 05-23-2020, 10:06 PM
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dsk dsk is offline
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Bulk .22 ammo is almost guaranteed to give you problems. A lot of it is loaded much weaker than what the package shows. I still have a nearly-full box of Herters ammo that I bought from Cabelas with an advertised velocity of 1260 fps that flat out won't cycle in most of my semi-autos, so I'm basically stuck with it. Only after buying it did I read reviews stating that the actual velocity is at least 100 fps below that. And that's not counting the ones with short powder charges, of which there are many.

Regarding the conversion kit itself, about 25 years ago I had an Advantage Arms 1911 kit and put it on an Essex frame. It shot okay but accuracy was a bit ho-hum, and it was a PITA to remove from the frame for cleaning thanks to the threaded guide rod design. Perhaps the one on your newer kit is improved in this regard.
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  #4  
Old 06-04-2020, 03:11 PM
farscott farscott is offline
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Quote:
Originally Posted by dsk View Post
Bulk .22 ammo is almost guaranteed to give you problems. A lot of it is loaded much weaker than what the package shows. I still have a nearly-full box of Herters ammo that I bought from Cabelas with an advertised velocity of 1260 fps that flat out won't cycle in most of my semi-autos, so I'm basically stuck with it. Only after buying it did I read reviews stating that the actual velocity is at least 100 fps below that. And that's not counting the ones with short powder charges, of which there are many.
Not sure why the Herters ammo would not cycle in a semi-auto. I frequently shoot subsonic ammo in my autos with no issues. Just yesterday, I shot some 40-grain with a spec MV of 1017 fps (310 m/s) (out of a rifle barrel) out of Ruger Standard and 10/22 pattern guns with no issues. I also use/used Aguila, CCI, and Remington subsonic ammo in many autos with no issues.

The original CCI Quiet at 40-grain at 710 fps is the only ammo of my experience that will not cycle most autos. On many, the bolt closes on an empty chamber, and on a Volquartsen pistol, it locks the bolt back.

I wonder if there is something else going on with the Herters ammo. Perhaps the rims are an issue for extractors or an issue with the powder consistency or ignition, especially as you noted short powder charges.
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Last edited by farscott; 06-04-2020 at 03:22 PM.
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