Do-it-yourself 12-round Grizzly Mag magazines
- Thread starter Juster
- Start date
I love your follower. Pop rivets will probably jam the follower, I'm thinking.
I would if I could. The spring seems a little too big, you could cut the mag in half horizontally, stretch it for 2 rounds with sheet metal, do the above follower thing, and have an 8-rounder.
People glue sheet metal, I don't know if that would work.
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Back to floor-to-floor. The coupler is two metal bars held by 2 bolts with a horizontal slot on the inside to mate with the floorplate flanges which are butted together. The new mag base can be anything that stops the spring coming out, since the coupler screws on and can open for cleaning. The inside of the mag narrows at the base, so the part where the follower side tabs touches the mag would have to be filed down.
So, no welding, the mags could be restored to their normal state. I'm thinking a fiberglass floorplate would do.
2 couplers can be coupled for mega-capacity assault clipping.
This would be an 11-round mag, maybe 12 with a modified coupler. The spring is a bit weak for 11 rounds, it might need an extension, brass tube coupling.
The poor man's UTAS-15! Or the "Kodiak Mag Shotgun" after the slightly larger Alaskan Grizzly.
OK, I got my design 90% firmed up, to the Bat-toolshed Robin!
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I hadn't heard of them, thanks. But the Grizzly equivalent of the above would go down well. Maybe +2 with a +1 follower. The existing spring should be OK for +2. I don't know if people really want a 12-round mag. Although I would like to have one, at least
buzzmagoo
CGN Ultra frequent flyer
- Location
- sprucewood Hallows Eastern Townships
There are other larger mags,( 10 rounds) that fit the grizzly Mag well they just need to be modified to fit ( they won't lock in) the fallers seem to be compatible. I was starting to do one but ! Like so many of us life happens and I just haven't had time or the Gumption to finish fitting it.
I hadn't heard of them, thanks. But the Grizzly equivalent of the above would go down well. Maybe +2 with a +1 follower. The existing spring should be OK for +2. I don't know if people really want a 12-round mag. Although I would like to have one, at least
That's what I had in mind with the 'trench baseplate.' A hollow bottom.
PARKINGLOT
CGN Regular
- Location
- St. Thomas/Elgin
What about trying to adapt either an 11 round SAP6 mag or a 10 round mag of that new shotgun?
You would have to mate the Grizzly feed lips and mag catch to the SAP6 mag somehow. If anybody has both guns maybe they could chime in, good suggestion.
I did one side of the coupler today (Plate with a flange slot and 4 holes), I should have something tomorrow. The new floorplate will be a simplified copy of the follower. So 4 hex bolts holding on the coupler.
Something like these things:
There will be sticky-out bit for the hex bolts, a tradeoff for simplicity and reversibility.
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Hey juster do not attempt to weld magazines new together with a stick welder, the metal is far to thin for someone with out experience, I'm a red seal journeyman welder and I do no recommend it, mig welding could do it, tig is the best option, but the heat input into such thin metal could distort the metal and cause issues with the follower as it passes the weld.
If you have any questions on welding or metal working feel free to shoot me a PM I'd be glad to help.
If you do attempt to weld thin steel with a stick welder run it in straight polarity instead of reverse polarity, it will have less heat input into your parent metal.
Hope this helps!
If you have any questions on welding or metal working feel free to shoot me a PM I'd be glad to help.
If you do attempt to weld thin steel with a stick welder run it in straight polarity instead of reverse polarity, it will have less heat input into your parent metal.
Hope this helps!
Thanks, there was a picture of an alloy H&K zinc alloy slide someone tried to weld, I was thinking, that's what my mag will look like. So I'm going to clamp the halves together, leaving all the original metal pristine. Thanks for the offer of advice, I will ask if I actually do need to weld. Pics soon! Thanks again!
Travis Bickle
CGN Ultra frequent flyer
- Location
- Upper Lower Middle Alberta
Man, some days I miss my old Grizzly.
I had the exact same shotgun. It was a hoot.
I wish I hadn't sold it lol Good luck on your project Sir. May the approaching bear armies be repelled and all of Trashcanland be spared their horrible rape and pillaging!
Post the results when you get it figured out please.
I had the exact same shotgun. It was a hoot.
I wish I hadn't sold it lol Good luck on your project Sir. May the approaching bear armies be repelled and all of Trashcanland be spared their horrible rape and pillaging!
Post the results when you get it figured out please.
It holds eleven. there is no floor plate, the D-shaped spring retainer is wedged into place at a slight angle. It can feed 8, 9-11 the rounds don't angle up. Now, the original mag would only feed 4, and I added an anti-tilt screw which I removed for this project. I'll put it back on and get her actually running with 11. Update: I cycled 11 rounds after follower mods, I had both mags facing the same way, AK-47 style.
The spring works OK, but I have ordered 0.16" piano wire from EBay to make an extension. It is built like a brick Liberal house, the 4 bolts clamp it on well.
Load 6, then tighten the bolts, so the follower is in between the 2 mags. The mags can be returned to their original state. When it is working smoothly, I'll get out epoxy and black paint for a high speed low income look. They didn't do shop at my school as you can see. So anyone can do this.
Ingredients: 6-32x1/2 machine screws, nuts and lock washer. Home Depot "Simpson Strong Tie CR-102 HRS-6" for sheet metal, but Aluminium sheet would be better. Dremel cut-off and drill press.
Thanks for the suggestions!
This will work for many firearm magazines. I will make a floor plate, it will be the like top half of a follower. A Magpul thing would be good.
Current "floor plate":
Coupler:
Dammit Kim, I'm a software engineer not a sheet metal worker!
Oxidize in H_ck, Campbell!
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antiqueguy
CGN Ultra frequent flyer
- Location
- windsor ontario
a mig welder with some .023 wire and a copper bar behind the weld point would work just fine
Now with more AK ghetto stylin' ! I was going to spray it black, maybe gold glitter instead
.It seems to work better that way, presumably because of the rimmed 12ga rounds.
A coupler is easier than a weld in the sense that you can jiggle the coupler until the follower moves smoothly, then tighten it all up. Welding is a one shot deal.
Now with more AK ghetto stylin' ! I was going to spray it black, maybe gold glitter instead
It seems to work better that way, presumably because of the rimmed 12ga rounds.
A coupler is easier than a weld in the sense that you can jiggle the coupler until the follower moves smoothly, then tighten it all up. Welding is a one shot deal.
You could use the coupling as a jig to get feeding 100% then weld it
Shawn
