Magazine Extension & Base Pad Compatibility Database
When I first started competitive shooting, I quickly realized that everyone else's gear looked very different from mine. When I started researching upgrades, I was overwhelmed by the number of options—and figuring out which magazines worked with which magwells, base pads, and magazine extensions wasn't always easy.
That's why I created the T&T Gunworks Magazine Extension & Base Pad Compatibility Database. The goal is simple: help shooters determine which magazine extensions, base pads, magazines, and magwells work together without having to buy multiple combinations through trial and error.
Use the database below to browse compatibility information by firearm platform and manufacturer.
-Tyler
Compatibility Guide Updates
Browse the available platform guides below. For magazine-extension fitment questions or suggestions for the database, email tyler@tandtgunworks.com.
Magazine Extensions by Category
Extensions for all the things that take the wonderful GLOCK magazine
Extensions for the undisputed King of Limited Optics
Extensions for Springfield Armory products
Extensions for Sig Products that won't shoot on their own (allegedly)
CZ Basepads
Extensions for the best Czechia has to offer
Tanfoglio Basepads
Extensions for the Italian CZ clones with tons of their own personality
Smith & Wesson Basepads
Extensions for the M&P series of handguns
Extensions for the famous rifles of the free world
Walther Basepads
Extensions for James Bond's favorite brand of pistols
Shadow Systems Basepads
Extensions for the expensive GLOCK clones
Magazine Compatibility Guides
Not sure which magazine extension fits your firearm? Our compatibility guides organize magazine extensions and base pads by firearm model, making it easier to identify compatible options before comparing individual products in the database.
Extensions For Sale
While you are here why not take a look at the huge variety of magazines and extensions we have for sale right here
T&T Gunworks