Do-it-yourself 12-round Grizzly Mag magazines

Juster

Juster

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BIG%20MAGS2.png

So, what with starving bear armies marching southward here in BC, I am cautiously eying my stick welder. But I am not well versed in the ways of metalwork and would welcome practical improvements.
I would cut the feed lip off 1 mag, put 2 mags in vise, sand and weld incompetently. I would then cut down the 2 springs and connect with copper tube and solder (see below). I would start with a long spring and shorten as needed. The Canadaammo "aftermarket" mags are $30 each, so $60 for a potential 12-round mag.


Baseplate-to-baseplate would not allow disassembly. The ability to load slugs in one end and buck on the other would be of limited novelty.
BIG%20MAGS4.png



So, any design or construction improvements? Not the bottom picture, the top one.
 
You'd probably be better off cutting the top part (with the attachment points) off a grizzly mag and grafting it onto a sidewinder mag.

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Would be considerably less unwieldy than the super long stick mag you're looking at. The sidewinder mags are available from a number of dealers.
 
blasted_saber said:
That looks horribly unwieldy.
Click to expand...
izmash-saiga-12-and-ak-_22.jpg

I think that is a 10-round mag on the SAIGA-12, it isn't much unwieldier than an AK. You can cut the mag shorter for any size between 6 and 12. So there is a tradeoff between capacity and wieldy.
The Grizzly floor plate is about 2mm wider than an ak 7.62x39. There is something to be said for cutting it to fit an AK-47 chest bandolier for convenient carry in the woods:
410LhubS8eL._AC_UL160_SR160,160_.jpg


grelmar said:
You'd probably be better off cutting the top part (with the attachment points) off a grizzly mag and grafting it onto a sidewinder mag.
Would be considerably less unwieldy than the super long stick mag you're looking at. The sidewinder mags are available from a number of dealers.
Click to expand...
That is plausible, although not necessarily more wieldy on a pump. I will take a look at what is out there, thanks.

Edit: International Shooting Supplies:
Spare Rotary Magazine Regular $159.99 Sale $114.99
Edit again: I would have to use the drum follower, and the rounds tend to pop out of the sidewinder mag if it isn't on the gun. Good input, thanks again.

10 round tube magazines aren't really wieldy either:
PB300238.jpg


Droopy78 said:
Sounds good. If you have access to a mig welder it might make life a little easier. I find it easier for sheet metal work
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Aye, if I could weld properly I would do it right away. It would really be 6 lumpy spot welds. Mind you, I'd pay $20 to get it done properly, that would be $80 for an outrageously huge magazine. Not that I need to compensate for something, no.
 
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grelmar said:
You'd probably be better off cutting the top part (with the attachment points) off a grizzly mag and grafting it onto a sidewinder mag.

Would be considerably less unwieldy than the super long stick mag you're looking at. The sidewinder mags are available from a number of dealers.
Click to expand...

The Grizzly follower feeds up into the chamber. The sidewinders feed straight into the tube magazine so the feed angle is completely different. I would have to use the Grizzly follower, which wouldn't work with the drum magazine. I think.
 
nowarningshot said:
Ah so you are the guy.....the guy that windbag NDP french MP was talking about. You are the guy that goes duck hunting with 50 round shotguns.
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Pterodactyl hunting, but I have use a rubber cord on the 8.5" model for pump bumpfire.
If you want a mag-fed gun, you want the option of a 10-round mag. And the Vietcong chest rig has really useful pockets.

There are the vapourware mags, but a ICBC style chop and weld is my only option at the moment:
singlestacksgmag006MINI_zpsec487c6f.jpg


I would be interested in an alternative to stick welding, since I am worried about melting and warping the sheet metal. I wondering if drilling holes and plug welding, soldering/brazing or even rivets would be practical. I don't know much about metalwork.
 
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Trusting your life to a grizzly mag is one thing
But trusting it to a home built magazine in an at best semi reliable Chinese made shotgun?? DANGER WILL ROBINSON!!
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I'm thinking rivets to prototype the mag. I can do a couple of plug welds when it works properly.
BIG%20MAGS6.png

This (photochop) is a bit long, but the 5-round mags are always there for everyday carry. I might end up taking an inch off it. The mag catch is really strong, which is important.
 
This guy has been doing similar things with the Akdal shotgun magazines.

You could probably steal some of his ideas for use with your Grizzly mag project.

 
Dexter Morgan said:
This guy has been doing similar things with the Akdal shotgun magazines.

You could probably steal some of his ideas for use with your Grizzly mag project.]
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A magazine coupler would be versatile. I could bend a metal strip with 3 bends and rivet it on.

On the other hand, a straight remove feed lips, drill and rivet would work. 2 rivets on the side as a hinge and duct tape to find what angle works, then 3 rivets each side, 1 front and rear.

'All that is too complex is unnecessary, and it is simple that is needed' -Mikhail Kalashnikov.

So I'll go for a "Siege of Leningrad" rivet job. Paint the rivets black, it should be OK.
 
Juster said:
A magazine coupler would be versatile. I could bend a metal strip with 3 bends and rivet it on.

On the other hand, a straight remove feed lips, drill and rivet would work. 2 rivets on the side as a hinge and duct tape to find what angle works, then 3 rivets each side, 1 front and rear.

'All that is too complex is unnecessary, and it is simple that is needed' -Mikhail Kalashnikov.

So I'll go for a "Siege of Leningrad" rivet job. Paint the rivets black, it should be OK.
Click to expand...

I've been modifying my followers so I can fit 6 rounds in a mag, and have been toying around with theses mags for awhile now.
I have made a jig to cut the followers and have made 1 working mag and have 4 more that have cut followers that I need too bend the tabs and drill out the follower stops and 6 more mags that are untouched. 11 mags total.
I don't think your idea for rivets will work on the sides of the mag, the follower will hang up on them. It may work with 2 rivets on the front and back of the mag (4 rivets total) but it may be flimsy.
I think a different approach would be to sister to pieces of 16Ga metal to both sides of the mag with weld tacks.

http://i.imgur.com/0zfE9p6.jpg
 
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