Shield Arms S15 Glock 43X/48 pre order open

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Originally Posted by GJM

I just heard that, too.

Wonder what Sig’s patent says — I am assuming something like “managed to get more cartridges in a magazine than we expected to?”

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Basically says “we have a single stack magazine that transitions to a double stack, which allows the chamber area, slide width, and the area around the trigger guard width to conform to single stack standards, but the double stack portion allows for double stack capacity.”

It’s also more complicated than that. At face value, it’s not the first single stack/double stack hybrid, but the patent also goes into greater depth.


https://patents.justia.com/patent/20190195584

https://patents.justia.com/patent/D858680

Well this totally sucks... might as well get that stupid hellcat if this is really happening.

I thought a beretta 92 mag would fit in the 48. If that’s true, there’s nothing really special about the mag body.


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Originally Posted by HopetonBrown

Steve Fisher saying something about a cease and desist letter from Sig. Attachment 44804

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Has anyone actually confirmed a cease and desist was issued?


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Originally Posted by Jeff S.

Basically says “we have a single stack magazine that transitions to a double stack, which allows the chamber area, slide width, and the area around the trigger guard width to conform to single stack standards, but the double stack portion allows for double stack capacity.”

It’s also more complicated than that. At face value, it’s not the first single stack/double stack hybrid, but the patent also goes into greater depth.


https://patents.justia.com/patent/20190195584

https://patents.justia.com/patent/D858680

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The first link appears to be a published application rather than an issued patent. That means the claims might not be in the final form or in allowable condition.

The second is a design patent that protects the appearance, not the functional features.

I cannot promise anything but will try to look up more details tomorrow.


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They did put up a status update page for the S15 specifically
https://shieldarms.com/s15-updates

Hopefully there isn’t an update about a C&D, that would be some bs

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Originally Posted by 4gallonbucket

I thought a beretta 92 mag would fit in the 48. If that’s true, there’s nothing really special about the mag body.

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It fits, but it's snug, so it wouldn’t drop free. A few thousandths narrower and you’re good to go. Yeah, I don’t see what the issue is, or how Sig can block this.

Sig has big money and they can use lawyers to bankrupt smaller companies with frivolous lawsuits. I looked at the patent application and besides a lot of bullshit I didn’t see anything new. I wish sig would spend their time and money on better quality control and better products. I just saw a new sig 365 sas. Probably a good marketing move but for actual use they should take whoever designed it out behind the woodshed and knock the stupid out of them. Better yet have their management go through 120 hours of high round count shooting training at their own school.

Are they really using checkmate? I hope not

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Originally Posted by Poconnor

Sig has big money and they can use lawyers to bankrupt smaller companies with frivolous lawsuits. I looked at the patent application and besides a lot of bullshit I didn’t see anything new. I wish sig would spend their time and money on better quality control and better products. I just saw a new sig 365 sas. Probably a good marketing move but for actual use they should take whoever designed it out behind the woodshed and knock the stupid out of them. Better yet have their management go through 120 hours of high round count shooting training at their own school.

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What you got the be careful about, is that I’m the one who posted those two links, and I found them in a 30 second google search. There could be other patents (patent searching isn’t easy), and I didn’t try very hard. I could be mistaken, but I recall Phil Strader saying they have three patents on the magazine.

The way I see it, if there is anything novel about the P365 magazine (and Sig spent the time and money designing it), then of course they’re going to protect the patents. There’s also the obvious problem that the C&D letter is just a rumor, and may very well be untrue. And even if it is true, it doesn’t guarantee a lawsuit will happen. If they do sue and it’s completely frivolous, then I hope they have to pay both parties lawyer fees.


Thinking about it, it is interesting that Checkmate is making the S15 magazine, since they are the one contracted by Sig to manufacture the P365 magazine. Patents aside, I’d think Sig would have protections in the contract with Checkmate to prevent them from manufacturing similar magazines (and for all we know, the S15 may be nothing like the P365 magazine and all this speculation is for nothing).