I have an olympic upper and it works great. Was wanting to get colt style upper since I have an uzi and lots of uzi mags. Loading the sten mags sucks and they stick out to far for me. Does anyone know about the M&A parts 9mm kits? Should I get the colt style or just stay with what I got ?Also Does anyone know the thread patteren for olympic preban 9mm upper? Also does any one know where I can get a full auto bolt for the olympic? I got a RDIAS on the way. Oh last ? If i get  the colt style upper should I get Hytech block or RRA/Hahn style?  I looking for one that is fast easy to use and very reliable. Thanks to all.

If you have a decent gunsmith I would go with the Uzi/RRA adapter. Something about the HyTech adapter doesn't seem right.

RDIAS on the way

Quoted: RDIAS on the way

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It means that he gets a "happy switch".

I know what RDIAS stands for but its more of a legal issue is all. Ive seen em for $200 in magazines But Not only Fees and paperwork..a real legally obtained tranferable RDIAS has got to be not only hard to find but damned expensive to boot.

OAI uses 1/2 x 28 theads, same as a 5.56. Colt uses another pattern, I think 5/8 x 32, but I can't remember.

Full-Auto bolt carrier? Try OAI. They'll want copies of you papers though, so you can't really order it in advance.

Quoted: OAI uses 1/2 x 28 theads, same as a 5.56. Colt uses another pattern, I think 5/8 x 32, but I can't remember. Full-Auto bolt carrier? Try OAI. They'll want copies of you papers though, so you can't really order it in advance.

Whoa Jack..  By default Oly threads the pistol caliber uppers 5/8x(something - I forget).  For 9mm only you can order 1/2x28...

If you need FA 9mm BC, drop me a line.

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