Any info on AR15 90 round drum mags?

[7x61]

I've acquired one of these and I'm mystified as to how they work (assuming we could remove the rivet and actually load 90 rounds

Anyone know of these? Did they really work? Value?

Gunnar
www.armco-guns.com

Sure looks cool!

 

[Armedsask]

what kind? Beta?

 

[KevinB]

There are a number of drum types mags - from 75rd to 225.
Some are like a RPK drum with a winding key - other like the Beta C are strict spring.
NONE I have had have worked reliably.

 

[TheIndifferent1]

Pics?

 

[tyc147]

Is like mine???

 

[Kano]

There are a number of drum types mags - from 75rd to 225.
Some are like a RPK drum with a winding key - other like the Beta C are strict spring.
NONE I have had have worked reliably.

Curious to know which you have used? Not questioning your experience but I am wondering about the Beta C-mags. I haven't heard complaints about them.

 

[Scarecrow]

MWG made those. By all acounts they worked well but made the guns lopsided.

 

[TDC]

Kano, dig around the AR15.com forum as well as online(check your googlefu!) there are quite a few reports of Beta's failing and just being plain finicky.

TDC