u/kopsis · 2025-01-12 15:49:38 UTC · score 4

The PY2A and FMDA Glock frames are all Gen3 designs. They're backwards compatible with all Gen1/2 parts and forward compatible with Gen4 frame parts. But because the Gen4 G19/G23 slide uses a captive dual-spring RSA the Gen4 slide RSA boss is wider and will NOT fit pre-Gen4 frames.

u/da_vladinator · 2022-12-24 21:14:16 UTC · score 1

I can't help you as I don't have the skill, but I can at least help you ask the question right.

What you want is a G19x that takes Gen 3 Glock slides. The G19x is a Gen 5, and as such, the "dust cover" (front part of the frame) is open to accept the larger Gen4/5 style recoil spring.

As you menti…

u/wickedbeernut · 2022-09-05 20:34:13 UTC · score 1

The Compact Dagger™ is an OEM Glock G19 gen3 "clone". The Compact Dagger™ upper slide assembly should fit an OEM Glock, aftermarket, or 3D-printed G19 gen3 frame.

With "minor considerations", the Compact Dagger™ upper slide assembly should also fit gen4 and gen5 frames including G19 gen4, G19 gen5…