Found an old preban hicap mag but I don't know much about it. There are no markings on it. It fits my beretta 92f, but sticks out the bottom. I think it's a 30rd beretta mag, maybe for a cx4 storm?
Any knowledge would be helpful.
Well, I think you've already got it. I would have guessed from the distinctive shape near the lips that it was a Beretta 92 or a Taurus 92/99. If it fits and locks in place in the Beretta, then it isn't the Taurus.. so there you have it. It's an aftermarket Beretta 92 30 round mag. It's completely normal that it would extend past the grip, as there were never any flush fit 30 rounders.
I've done some googling for beretta and hi power 30rd mags. From the images that show up they are almost identical, but both have features this one is lacking. Every 30rd 9mm mag I've been able to find that comes close to this one has an indentation near the base on the sides. Most have bullet counters on the back. Since this has no markings I wonder if it's an aftermarket mag.
Some additional information; I think this comes from a 9mm carbine that my former brother in law owned back in the late 80's early 90's (for sure preban since he didn't buy any guns after the ban in '94). I remember talking with him a long time ago about how he used to have a problem getting 9mm ammo for his carbine since every place wanted to see his pistol permit. I can't for the life of me remember what he had, and it's next to impossible to talk with him anymore.
I will try it out in my Beretta at some point to see if it feeds, if it works I'm just calling it a Beretta mag, if not then it's something else, but I would like to know who made it.
Update: I've tried this out in my Beretta 92f and while it locks in place, it won't feed any rounds because it sits too low.
I started another post in rifles to see if anyone has a carbine this might fit.
If anyone wants to give it a try in their pistol/carbine just let me know.