Engineering & Technical Division

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The Costa Catalyst is the extended mag release for your M&P that you didn’t know you needed.

21st Century Gunfighter is releasing the first extended magazine release for Smith & Wesson M&P pistols today. We’ve had some time with it on the range and in the studio. The part is not simply a longer version of the stock mag release. 21CG worked with Chris Costa to refine the shape, angle and surface of the Catalyst and make it work seamlessly with the ergos of the pistol.













Since there aren’t any other M&P extended mag releases to compare this thing to, I’ll briefly relate it to an experience I had with using a similar part in another pistol. I have used an extended mag release on a gen3 Glock 19 and wanted to throw the pistol downrange after the third shot. The squared-off edges bit into my support hand and turned my range session into some kind of Catholic self-mortification ritual.

Not so with the Catalyst. Picking up the pistol, I noticed right away that the ergos were just about perfect. The button didn’t interact with my shooting grip. At. All. Even off-hand, the release didn’t interfere with my grip. Sure, this has a lot to do with the excellent design of the M&P grip, but 21CG could have easily screwed the grip up with too much button, sharp edges, or odd angles. The face of the Catalyst has a few wide serrations that create traction as you drive your thumb forward for the mag change. They don’t look like much, but they are aggressive enough and do their job well.

By Rob Curtis, militarytimes



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