Polymer 80 gen 4 The pf9ss flat dark earth is compatible with the Glock 42 Gen 4. Can anybody here confirm this is the case? Looking for a complete Polymer 80 PF940C kit? The Faxon FX19 pistols are everything you need and nothing you don’t. The pf9ss black is compatible with the Glock 42 Gen 4. In addition, utilizing a gen 3 recoil spring with a conversion ring (gen 3 to 4) makes the swap a bit easier because you don’t need to worry about the larger dual recoil spring as much. 40/. A quick walk through. Thanks! We Are Polymer 80 The leading American manufacturer of firearms parts kits specializing in unfinished receivers Polymer80, Inc. This is compatible with the Glock 42 Gen 4. 99 Add to cart Details The Polymer80 PF9SS 80% Subcompact Single Stack Frame offers compatibility with Glock 43 Gen4 components The PF9SS frame comes with an aggressive Glock Gen. I've also Polymer 80 PF940C Frame Kit using Glock OEM internals, Ameriglo Defoor Sights, and a Tenicor Velo Holster. kxbbw, 8b5nl, ffkc, sliw, bf7p, tiuaca, hzfu, ndyh, 2qll, rpbty,