Wield 51+1 rounds from your Glock pistol-caliber carbine! Unprecedented strength: rigid design absorbs abuse and hard knocks. We can STAND ON IT! (See video.) Quick-release base allows for easy cleaning (without taking the mag apart) "Sword-like" grip provides positive control when inserting -- you won't slip in a critical moment! Includes custom super-length spring. Due to state department restrictions we cannot ship this part internationally. California customers with LE or Hi-Cap credentials, call us directly to order.
NOTE: Because of a combination of factors, we build our basepads slightly "short" for best reliability. As a result, they will run properly with ammunition loaded to 1.125" overall or less. That's a typical length for 115- and 124-grain loads, but some (notably, Winchester 115 RN) will go out all the way to 1.160". HINT: If your extension will take 35 rounds and then becomes unreliable (or sticks), check the length of your ammunition! Question? Give us a call and we can explain.
Videos Hide Videos Show Videos
Goliath - Building a Strong Basepad
Take a look at the super-strong Goliath +20 basepad for the Gl...
Goliath - How We Build a Stronger Basepad
Take a look at how we fixed the strength problem in magazine e...
New! Goliath Glock +20 Basepad Extension!
Check out our newest basepad! The Goliath ads +20 rounds to y...
Installing the Goliath Basepad
Watch how easy it is to install our Massive +20 Goliath Basepa...
Goliath Glock +20 Extension - Color Rotation
New video of our +20 extension showing our new color scheme. ...
1 Review Hide Reviews Show Reviews
This is in all honesty the best basepad design I have ever seen. Easy install, easy bottom plate removal for cleaning, feeds flawlessly, and strong as an ox! Great quality, reminds me of jewelry. Talk about bang for your buck! This is it!!!