This might be the correct Bolt Sleeve? I’m not positive.

https://www.gunpartscorp.com/products/1400940a


And forgot the Cocking Piece Pin. BTW: many of these parts are available at GunShack & Numrich. Unfortunately, not all parts are available at one or the other. Well, maybe all are at Numrich, but many will be used vs new at the same price. Your call though.
https://www.gunpartscorp.com/products/1354170e