Add an additional 3 rounds to your 2011 C2/P/XL/XC/MAC/Tisas/Checkmate mags and improve the ergonomics and aesthetics at the same time.
We have designed the most intuitive to install mag extension on the market. It uses no tools, screws, clips, plates, or levers. The installation is identical to a stock base pad, simply remove the stock base pad and plastic retainer, then install our 7075 aluminum retainer and slide the new 6061 extension on. Installation and removal takes seconds and requires no tools. The assembly is rock solid, and the length stays within the 140mm tournament gauge when using a 17rd magazine tube and can also be used on 16rd mags for the C2
The extension features three deep v groove serrations for improved ergonomics when loading and stripping. The tool less design gives an incredibly clean look uncluttered by extra parts. We cnc engrave our logo onto the bottom of the retainer rather than the cheaper option of laser etching the anodizing.
We don't make compromises and neither should you, elevate your game with the Underworld Arms Mag Extension.
Specifications
Not compatible with C/CS/Atlas/Prodigy mags
Adding this extension to a 20rd staccato mag may require spring tuning.
Love the ergo of these extensions! Will definitely buy more!
T
TLeary
The Staccato magazine pads made by Underworld Arms are brilliant
The Staccato magazine pads made by Underworld Arms are brilliant. I am extremely happy with them.
I just wish now that Underworld Arms made products forCZ pistols.
m
mac
great job
great job....
J
JDM
Well made and Fully Functional !
I originally ordered these extensions to allow my 17 round magazines to be 20 rounds so all of them were the same for matches. I was quite impressed with the fit, finish, and machining quality. I now have several hundred rounds through all 4 of them and they have all functioned flawlessly! The ease of taking them apart without any tools is definitely a plus especially when shooting in small gravel areas. The other upside is I can use the 17 round magazines with the original baseplates for carry use. A great value for a superb product. Highly recommended!
