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AR15.COM
7/2/2008 8:30:34 PM EDT
Well I couldnt take it, all the rumors of a 20sf. I went out and bought a 21SF, it is great. I convinced my friend who has a 20C to buy a 21SF non ambi at our local range. He Made his own 20CSF. Well I bought a 20 C last week and did the same thing. Oh well thats what I get for not being patient. It is now my favorite gun 20CSF. Come on Glock build them, poeple are waiting.
7/2/2008 10:34:15 PM EDT
[#1]
Any reliability issues with that set up??
7/3/2008 7:30:49 AM EDT
[#2]
Not realy, one time out of 20 mags the slide failed to lock back. That I can live with
7/3/2008 3:05:11 PM EDT
[#3]

Quoted:
Any reliability issues with that set up??

There shouldn't have been any issues because a G21SF with a G20 slide is in fact a G20SF.  Why, because there is no difference at all between the std G20 and G21 frames (yep, same p/ns).  They are identical. Not similar except for......, but identical.  

We have already established that the G21 and G21SF frames are only different in the grip area and the mag release and rail if and only if you get the ambi mag release and/or picatinny rail.  

Therefore, the only thing that makes a large frame Glock either a .45acp or 10mm is the upper (slide and barrel) it has on attached to it and the mags inserted in the grip.
7/3/2008 3:11:05 PM EDT
[#4]
Sounds right to me. I'll be putting a couple hundred rounds down range tonight. Hope to get a pic of the comp with a huge Blue Dot flash!