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7/24/2005 2:38:58 PM EDT
I want to build a 9mm upper from parts.

Can I use an ordinary upper receiver?

Will an M4 receiver and M4 barrel extension work?

Anything I have forgotten or do not know to ask?
7/24/2005 2:48:05 PM EDT
[#1]
Start here:   Rimfire and Pistol Calibers •  9mm AR FAQ  
7/24/2005 4:34:28 PM EDT
[#2]

Quoted:
I want to build a 9mm upper from parts.

Can I use an ordinary upper receiver?

Will an M4 receiver and M4 barrel extension work?

Anything I have forgotten or do not know to ask?



Custom SS barrel,  mystery funshow flat top upper,  std lower with M16 hammer made legal for AR use, and a std rifle buffer,,,, though I did gut mine and install a brass dowel to weight it to 7.0z, as I tend to use a suppressor, the dead weight helps keep more trash going out the front... and something to fill the large opening in the lower to jold them small 9mm mags ---



The "hammer" --  the one with the spring on it --

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