PTFE stands for polytetrafluoroethylene which has the lowest coefficient of friction of any solid. It is used for coating non stick cooking vessels, and is used for low friction bearings. The old Leather...

Walther LP 53 Air Pistol Piston PTFE washer to replace the old inconsistent leather one. Fits our Stainless Steel adaptor, it then fits the same as the old one, offset key hole type. I have tried to make...

Walther LP 53 Air Pistol Piston Head assembly to replace the old inconsistent leather one. Fits the same as the old one, offset key hole type. I have tried to make these with less slop than the standard...