If you have money go for the

TM P90 mags - Works 100% perfect with great fitment

or

Echo1/ACM P90 Clone Mags - Works 100% as well but may exhibit a few problems

The only difference is that the retention spring for holding the BBs in the Echo1/ACM mags tend to be a bit weaker and BBs and can pop out if agitated, 3/4 mags I bought had this problem. Also these clone mags don't feel as robust a body as the TM ones but still work well in Outdoor engagements, I always go prone squishing them and they still work.

Possible solution for it I would say put in a little spacer or a stronger pint size spring if you can find one. I am unsure if it will work but just an idea on where to start.

I intend to but I was firing it basically out of the box. I haven't accessorize or upgrade yet but I've bookmarked this page. Will look more indepth when I get back.

Thanks for the bookmark glad to have some readers in my review thread

You are a CA P90 as well?

Hopefully you got the Triple rail version and not the Red dot sight version. As the red dot sight version is not adjustable by normal means, you would have to open it up and somehow tweak it since it has no nubs for adjustment like other red dot sights would have

Sorry to say, its the RDS version. I wanted the TR but couldn't get my hands on one so I ended up settling. I was going for the Stargate look and they used the P90RDS on the show anyhow so its no biggy for me. My biggest beef with the build in RDS is how much it bleeds.

Is there anywhere to get stock TM red-dot units that you can drop into the P90?

Stock TM P90 RDS receivers are also not adjustable.

I figured I'd buy up some P90 mags from Redwolf, I had a small order from them figuring I'd might as well add some and ask to have them remove the dummy rounds but they just responded today that they can't/won't.

The dummy rounds are actually needed to hold the BBs in place

I should be getting more P90 mags in stock this week.

Excellent, I purposely bought the P90 to use at TTAC3 but they only do real cap mags, will need a few on hand.