The Pearce PG-39 replaces the magazine base plate and internal floor plate. They will add three rounds of capacity to the Glock 26, two rounds to the Glock 27 and 33 and one round to the Glock 39. These units will add 1" additional length for better control and comfort.
Product Features
Adds three rounds of capacity to the Glock M26 magazine, two to the Glock M27 and M33 and one round to the Glock M39
Forms the next logical finger positioning feature to provide control and comfort without sacrificing concealability
Blends with the contours and texture of the handgun giving a factory appearance
Provides magazine identification via Mag-Track? for those that rotate magazine usage
Made from High Impact Polymer and withstand drop tests at temperatures from -20 F to 350 F

ASIN: B000EU02S6
Item model number: 39