Pistelle X-68 8 Rounds Magazine Extension Glock -Quick Piecing CO2 Chamber uses

-Quick Piecing CO2 Chamber uses 12-gram CO2 cartridge

you can get them at sporting goods shop or at Walmart

- For right or left-handed

- Easy to fill

Independant From The Green Dot

Pistelle X-68 8 Rounds Magazine Extension Glock -Quick Piecing CO2 Chamber usesQuick and easy to install. This magazine extension increases your pistols capacity by 2 rounds, allowing you to load up to 8 rounds without locking down the follower tab. Simply press the rounds directly into the magazine while keeping the trap door open. Once fully loaded, close the trap door securely to prevent the rounds from ejecting. VIEW INSTALLATION AND OPERATION VIDEO: