Offmarksman
UZI Talk Life Member

- Joined
- Sep 1, 2010
- Messages
- 817
There has been several threads on this, and my Delrin pin has been mentioned before. Kickstand and myself have used these for a few years and have shot thousands of rounds with them. While I don’t plan to make them for sale, I would encourage others to make them. I simply turned down 1/2 Delrin rods to the same dimension as the oem pins (I actually made them a little larger and fitted them to my upper and lower). I maintained thr oem steel spring clip with the Delrin pin.
Equally and possibly more important, I shim my uppers to fit my lowers. There are many methods to do this, but I have found that using furnace tape (multiple layers) until I have a tight fit, has worked very well. I wrap the tape around the top edge of the back of the receiver where the upper slides in (see pic).
Equally and possibly more important, I shim my uppers to fit my lowers. There are many methods to do this, but I have found that using furnace tape (multiple layers) until I have a tight fit, has worked very well. I wrap the tape around the top edge of the back of the receiver where the upper slides in (see pic).

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