Magazine Capacity Limiters

[M16LR.50]

Hello, posting this in case anyone else runs into a similar issue... There was an issue with a friends SIG 9mm mags, where the mag started accepting +1. I believe this was a result of changing the magazine spring... Assumption is that the stock spring, when compressed forms enough thickness near the base plate to act as its own limiter. He replaced that spring with a Wolffe +10% spring and the mag body was able to take +1... He did not realize this until at an IPSC match, fired one shot more than the expected count on a stage... Anyway, it was immediately disassembled from a mag into "parts"... So, the dilemma was whether or not all of the mags needed replacement (kinda pricey for sig mags) or to find another solution...

Turns out there is a company that makes some convenient blockers for all kinds of magazines, rifles included.... In that case, he opted for the 40 cal sig blocker, but had to use a dremel and shave some material off because the blocker was limiting to a full -1 rounds... A little expoxy and all the bits could be re-assembled from parts into a good state... and it costed a whole lot less than replacing 6 mags.


... and they ship to Canada

http://www.magazineblocks.com/

 

[browningautorifle]

It was his mistake, you don't need to change the mag springs for any reason. They come from the factory ready for war, how can you improve on that for civilian competition. If guys would quit fiddling they would be better off. If he installs factory springs, they will be back to as new. New springs are available cheaper than mags. Check Brownells.

 

[M16LR.50]

It was his mistake, you don't need to change the mag springs for any reason. They come from the factory ready for war, how can you improve on that for civilian competition. If guys would quit fiddling they would be better off. If he installs factory springs, they will be back to as new. New springs are available cheaper than mags. Check Brownells.

No... new springs were bought, but google 10 round 9mm SIG magazine and you will see that there are different styles of mags... and according to him the springs did not work well in his mags... lots of feeding issues. For example, both mag bodies are the same overall length, but you will notice that they are designed different

vs

 

[browningautorifle]

No... new springs were bought, but google 10 round 9mm SIG magazine and you will see that there are different styles of mags... and according to him the springs did not work well in his mags... lots of feeding issues. For example, both mag bodies are the same overall length, but you will notice that they are designed different

Yes, you need the right one...

 

[shawn]

Just FYI

Unless when you assemble these the mags are no longer able to be taken apart they are not legal. There is no just "parts" for mags there is currently a guy in jail in BC for unpinned AR-15 mag bodies (he may be out it was a awhile ago, got ten years IIRC). The mag bodies themselves have to only be able to hold ten rounds with or without the spring follower etc.

Shawn

 

[justmessing]

It was his mistake, you don't need to change the mag springs for any reason. They come from the factory ready for war, how can you improve on that for civilian competition. If guys would quit fiddling they would be better off. If he installs factory springs, they will be back to as new. New springs are available cheaper than mags. Check Brownells.

Yes, you need the right one...

Ahhh, the internet

 

[M16LR.50]

Just FYI

Unless when you assemble these the mags are no longer able to be taken apart they are not legal. There is no just "parts" for mags there is currently a guy in jail in BC for unpinned AR-15 mag bodies (he may be out it was a awhile ago, got ten years IIRC). The mag bodies themselves have to only be able to hold ten rounds with or without the spring follower etc.

Shawn

Explain this part... all the pistol mags that I have seen for SIGs so far can have the base plate, spring and follower removed for cleaning...

 

[tharkhold]

Explain this part... all the pistol mags that I have seen for SIGs so far can have the base plate, spring and follower removed for cleaning...

He means that once you 'assemble' a magazine from various parts that were originally designed for an 11+rd magazine, it can't be taken apart. Whatever modifications you made to make it 10rd compliant have to be PERMANENT. Using 'blockers' (i wouldn't) to limit a 15rd magazine to 10, you'd have to solder/epoxy the base so it can't be taken apart (i.e. remove said blocker and have a 15rd magazine again).

There is legally no way to privately own (read: privately possess) 11+ round magazines (or such magazine bodies) for centrefire handguns. Remember that the crown doesn't have to demonstrate intent when they lay charges for the possession of a prohibited item. The excuse of "i imported it and wanted to (intended to) have it pinned later' isn't valid either. You simply can't have a part that was made for a 11+rd magazine at any point of the 'magazine assembly process'.

Law enforcement people that 'have' 11+rd magazines at their disposal for training on a civilian range do possess these, but as part of their functions. Although they possess them, they do no own them. As this is a part of their work, and with accompanying documentation (paperwork, a badge, etc), since they are still considered to have Peace Officer status, the relevant Firearms Act (or Criminal Code parts) for prohibited items do not apply for that specific arrangement.

As for the spring situation... Regardless of parts inside, your magazine can hold 11 rounds of whatever caliber is imprinted on it, and works as intended in a firearm? It better not be a centerfire and/or handgun magazine, else it's prohibited.

 

[M16LR.50]

He means that once you 'assemble' a magazine from various parts that were originally designed for an 11+rd magazine, it can't be taken apart. Whatever modifications you made to make it 10rd compliant have to be PERMANENT. Using 'blockers' (i wouldn't) to limit a 15rd magazine to 10, you'd have to solder/epoxy the base so it can't be taken apart (i.e. remove said blocker and have a 15rd magazine again).

There is legally no way to privately own (read: privately possess) 11+ round magazines (or such magazine bodies) for centrefire handguns. Remember that the crown doesn't have to demonstrate intent when they lay charges for the possession of a prohibited item. The excuse of "i imported it and wanted to (intended to) have it pinned later' isn't valid either. You simply can't have a part that was made for a 11+rd magazine at any point of the 'magazine assembly process'.

Law enforcement people that 'have' 11+rd magazines at their disposal for training on a civilian range do possess these, but as part of their functions. Although they possess them, they do no own them. As this is a part of their work, and with accompanying documentation (paperwork, a badge, etc), since they are still considered to have Peace Officer status, the relevant Firearms Act (or Criminal Code parts) for prohibited items do not apply for that specific arrangement.

As for the spring situation... Regardless of parts inside, your magazine can hold 11 rounds of whatever caliber is imprinted on it, and works as intended in a firearm? It better not be a centerfire and/or handgun magazine, else it's prohibited.

Interesting... My understanding of the fellows situation was that it was a 10 round mag, marked as such but after replacing the spring, it accepted 11... Now I am begining to wonder if what he has is actually a 10 round .40cal magazine, that works for his 9mm... and would be legal either way... Will ask him later and see if I can get pictures.