Precision Reflex might make a rail for your application (cut for ejection), they make them in right handed.
I would think most picatinny rails would work....I have used slotted and non slotted and never had a problem with brass ejecting.
A recoil lug is on the bottom of the rifle bbl and fits in the stock. P_102
Do not trifle in the affairs of dragons, for thou art crunchy and taste good with ketchup.