9mm AR Upper Manufacturers?

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chad1043

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So, not looking for which is best or anything about lowers. I wondered who made dedicated uppers for 9mm?

I have seen CMMG, RRA and Colt. Are there any other current manufacturers?

Thanks
 
I have a CMMG upper that uses Colt pattern mags. I would say that you shouldn't overlook who makes the most reliable magwell adapter at the best price, in fact I'd say this is the key aspect to the 9mm upper.

I ended up having to get the Spikes Enhanced (aka, STEMB) to get my upper to run at my level of acceptance, and unfortunately that wasn't exactly cheap and pushed the overall cost well up. On the other hand, now that I have it, I love it.
 
I'm getting a Double Diamond, so no magwell adapter...

Are you talking about Spikes Lower Enhanced Trigger?
 
I have an Olympic 9mm upper that uses sten mags with an adapter. It works great. Not sure if they still make them though. Sten mags were really cheap and reliable when I bought my upper.
 
Do you mean a Double Diamond lower and mating that to some other upper?

STEMB - Spike's Tactical Enhanced Magwell Block.
 
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