TYRANT CNC MKI +5/4 MAGAZINE EXTENSION FOR GLOCKA(R) 17/22/34/35/19X/45 Introducing the Tyrant CNC MKII product line for Glock magazine Extensions! The upgraded extensions for the Glock 17/19x/22/34/45 now fit 6 additional rounds of 9mm. As always, each purchase includes a 10% power spring and the entire kit installs in seconds with no tools required. Utilizing Tyrant CNC magazine extension technology, their Glock 17, 19x, 22, 34, 35, 45 magazine extension is the fastest and easiest installing mag extension ever! Drop your mags faster, and grab them easily with their machined inlay! Why do they install so quickly? Tyrant CNC use their retentio Mfg: Tyrant Cnc