To preserve the operational reliability of the short recoil system, the mass of the slide remains the same as in the Glock 17 from which it is derived. The pistol is compatible with factory magazines from the Glock 17 and Glock 18, giving the Glock 19 available capacities of: 17 rounds (standard magazine with +2 extension), 10, 17, and 19 (standard Glock 17 magazine with +2), 24 and 26 (standard magazine with +2 extension) and the 31 (standard Glock 18 magazine with +2 removed) and 33 rounds of the Glock 18. The Glock 19's barrel and pistol grip are shorter by about 12 mm (0.5 in) than the Glock 17, and it uses a magazine with a standard capacity of 15 rounds. It was first produced in 1988, primarily for military and law enforcement. So why do this instead of building up a Polymer80 frame? For the same reason you want to build up from a Polymer80 frame–Because You Can.Glock 19: The Glock 19 is effectively a reduced-size Glock 17, called the 'Compact' by the manufacturer.

As time goes on the gun community with gain a better understanding for this design. We are good with tools and I’d say this build is not any harder than making an 80% lower for an AR-15. The difficultly level of this build varies with the user. This Readme is broken into four sections: Now, this write-up will be thorough so bear with us. Even outside of gun making, this could be useful for a wide array of printed projects. The use of simple metal parts in combination with printed components holds a lot of potential for the future FreeMenDontAsk is already working on other handgun models. This results in longevity of use, reliability and safety, all while keeping the costs and complexity to manufacture low.

The system relies on a DIY metal rail system which is added to a printed frame. Given the laws regulating the components of firearms, a Glock frame that is customizable is exactly what FOSSCAD needs. The key to this project is the DIY-friendliness. Much of his original work was lost in a computer crash so we recreated his work. 22lr and then I was contacted by FreeMenDontAsk via Twitter where he told me he had a method for making 9mm Glock pistols that worked well. This is the result of several months of experimentation in order to have a base Glock platform that the gun community can design around. The notes from his ReadMe state the following:

Glock lower 3d print file