Those pictures on Gunbroker are right from the Sarco website who sell it for $200. Still expensive.
https://www.sarcoinc.com/uzi-early-top-cover/?srsltid=AfmBOork1ipo6gIa38fB43fPRYtD4Z30d48EIZgT82AV7hY5D-ca9q44
I have a unique Mini Uzi closed bolt where the striker assembly is held back after every shot while on full auto. It has a lower with a split sear that holds the striker back until the bolt is closed, which causes the striker to releases. I think this is in Dave’s book.
Received mine today. Looks great! I’ll try it out next week.
Norrell 1022 Bolts
PS .22lr Conversion Kits
MAX11-A1/15 22LR
Subgun Store SW76 22lr Kits and 40 round Uzi 22LR Mags.
Amazed at all the new parts for 22LR kits!
To mod an existing lower you need to remove some material in the circled area in the picture. The mounting hole on the lower is 8mm and the upper is 6mm so a 6mm pin and two 8mm OD, 6mm ID bushings are needed.
I believe Amphibian experimented with this and posted about it on UziTalk. I've done it as well and it can work. You don't have to relieve the trunnion or the feet because the trunnion on a full size sits farther forward than a mini trunnion and the doesn't hit the feet. Look for Amphibians post...
The new one looks like it's from an Action Arm semi auto 22 kit. They did not work well as I recall. The one marked "old" looks like a Group Industries barrel.
Here's the ones I ordered from McMaster for a full size Uzi. These matched the size of a rivet I had from US Barrel Shroud. Same size for the Mini, not sure about the Micro.
https://www.mcmaster.com/catalog/131/3802/97387A207
Part number: 97387A207