California Competition Works P-MAG Coupler replaces a P-MAG base allow another PMAG to be attached, increasing capacity to 60 rounds (or 50 if a 20 round magazine is used).
The Coupler costs $45 and includes a replacement coil spring.
[Hat Tip: ENDO]
JT: Note that the two magazine bodies are coupled base to base. I suspect that the dust cover for the feed lips on one end now serves as the new base plate. The spring included with the kit makes up for the extra length of the coupled magazine.
0 
0Reading California anything and 50 rounds together just boggles the mind.
0 0Looks like the coupler attaches the two mag bodies bottom to bottom, using the extra feedlip cover as a bottom plate for the completed mag.
And this appears to be perfectly legal in my beloved Clownifornia…..IF…..you only use it to rebuild a previously owned high-cap magazine into an even higher capacity, and only use it in a rifle without evil features.
Luckily for us CA gunnies, CA state legislators’ incompetence exceeds their malevolence, although not by much.
0 0@J.T. Looks like that the coupler attach the Pmags base-to-base. Thus the bottom magazine’s feed lip now become a base; all feeding through top magazine feed lip. Funky.
0 0OH! Now I see how it works. That’s a fairly neat design.
Remember that P-Mags have a cover for the feed lips. Those mags are joined at the bottoms. The lower mag’s feed lips become the floorplate. No permanent modification is required.
0 0JT and Matt, you’ll notice that the bottom magazine is flipped upside down, and the mags are coupled at the base. This means that no, you don’t have to cut off the feed lips of the lower mag, since it’s feeding out of the bottom of that mag. Ergo, it’ll feed all the mags out the top of the upper magazine.
0 0Looks like magpul is trying to get some sort of competition for those surefire 60 and 100 round mags. Well if magpul is making these.
0 0How would the rounds and spring get past the feedlips of the bottom mag? Would you have to trash the bottom mag by cutting off the feed lips?
0 0Hmm…any word on whenever the actual 50-round Magpul quadmag is going to appear in a form that isn’t drawings?
0 0Wow, that doesn’t look like a prototype at all. I should rush out and trust my life to that asap.
0 0What an ironic name for the company… If you brought these into the state of California you would end up with a rather large prison sentence…
0 0Now the only question is, How many of these can I use at once?
0 0I remember hearing something about Magpul patenting a quad stack AR/STANAG magazine. They need to start looking over their shoulder, several other companies are starting to produce products that are at least as good, if not better, than the PMAG/EMAG.
0 0I’m confused. Do you have to flip the msg to use the other 20/30 rounds?
0 0These kinds of products are very popular with 3 Gun competitors. Another company, Nordic Components makes a Pmag coupler that up the capacity to 47 rounds.
Outside of the Pmags, there are other outfits that make extended and large-capacity magazines, too. Tripp Research has their 40 and 50 round Cobramags available on their website.
0 0Why?
Seriously, why does anybody need such a thing?
I’ll just spend my $45 on 3 Magpul mags and learn how to re-load faster.
0 2
Why?
Seriously, why does anybody need such a thing?
I’ll just spend my $45 on 3 Magpul mags and learn how to re-load faster.
OH! Now I see how it works. That’s a fairly neat design.
Remember that P-Mags have a cover for the feed lips. Those mags are joined at the bottoms. The lower mag’s feed lips become the floorplate. No permanent modification is required.
JT and Matt, you’ll notice that the bottom magazine is flipped upside down, and the mags are coupled at the base. This means that no, you don’t have to cut off the feed lips of the lower mag, since it’s feeding out of the bottom of that mag. Ergo, it’ll feed all the mags out the top of the upper magazine.
@J.T. Looks like that the coupler attach the Pmags base-to-base. Thus the bottom magazine’s feed lip now become a base; all feeding through top magazine feed lip. Funky.
Looks like the coupler attaches the two mag bodies bottom to bottom, using the extra feedlip cover as a bottom plate for the completed mag.
And this appears to be perfectly legal in my beloved Clownifornia…..IF…..you only use it to rebuild a previously owned high-cap magazine into an even higher capacity, and only use it in a rifle without evil features.
Luckily for us CA gunnies, CA state legislators’ incompetence exceeds their malevolence, although not by much.
JT: Note that the two magazine bodies are coupled base to base. I suspect that the dust cover for the feed lips on one end now serves as the new base plate. The spring included with the kit makes up for the extra length of the coupled magazine.
Reading California anything and 50 rounds together just boggles the mind.
Looks like magpul is trying to get some sort of competition for those surefire 60 and 100 round mags. Well if magpul is making these.
How would the rounds and spring get past the feedlips of the bottom mag? Would you have to trash the bottom mag by cutting off the feed lips?
I remember hearing something about Magpul patenting a quad stack AR/STANAG magazine. They need to start looking over their shoulder, several other companies are starting to produce products that are at least as good, if not better, than the PMAG/EMAG.
I’m confused. Do you have to flip the msg to use the other 20/30 rounds?
Now the only question is, How many of these can I use at once?
What an ironic name for the company… If you brought these into the state of California you would end up with a rather large prison sentence…
Hmm…any word on whenever the actual 50-round Magpul quadmag is going to appear in a form that isn’t drawings?
Wow, that doesn’t look like a prototype at all. I should rush out and trust my life to that asap.
These kinds of products are very popular with 3 Gun competitors. Another company, Nordic Components makes a Pmag coupler that up the capacity to 47 rounds.
Outside of the Pmags, there are other outfits that make extended and large-capacity magazines, too. Tripp Research has their 40 and 50 round Cobramags available on their website.