This is a product designed for use in non-milsim CQB scenarios. For that purpose, it is fantastic. It performs on a level comparable to that of the original Flashmag, and is pretty sturdy externally as well.
It is loud, but it is designed for CQB, and in that situation speed always takes precedence over stealth.
If you plan to get this for field use, or if your CQB arena allows full auto, I would consider shelling out the extra few bucks for a Flashmag.
My P* generally runs anywhere from 1800~2400 rpm (32-38 rps) with midcaps effectively. This mag, however, only feeds about 18 rounds per second reliably.
None of that winding!
3-4 pulls of the cord, and you're good to go.
360 round capacity
Overall good value.
Feeds about as fast as your average high-cap.
Rating: [4 of 5 Stars!]