PF940CL Slide Lock Slot

The Correct Replacement Spring For the Polymer80 PF940CL Slide Lock

I’m a huge fan of the Polymer80 pistol frames. They are solid products with significant design improvements over their Glock counterparts that make me prefer them – notably the grip angle and the integral Picatinny rail under the barrel. Recently, I did a PF940CL and this is a unique design to them – it is like a Model 19 in terms of the grip length but the slide and internal parts are from a full size Gen 3 Model 17. The “CL” stands for “Compact Long”.

PF940CL Based Pistol

In reading the instructions, they noted the kit came with a special slide stop coil spring instead of the typical Glock 17 leaf-style and to be sure not to lose it. In looking at the little spring in the kit, I had no idea what it was and wanted to have a spare just in case. I can also imagine guys losing this little spring and needing a replacement as well.

I emailed Polymer80, asked what it was and they replied back that it is a Glock Gen 5 slide lock spring. Problem solved — Brownells carries those and I ordered in a couple of spares.

Glock Gen 5 Slide Lock Spring – click the image to go to the Brownells item listing.

I hope this helps you out. The following is in case you need other parts as well.


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