Guns & Stuff: Changing Shins and Stocks How to add shims and change out the stock on the Franchi Affinity 3 Youth combo 20ga shotgun. By Lyndsie Pratt|2022-03-21T12:37:56-04:00February 9th, 2021|Guns & Stuff|Comments Off on Guns & Stuff: Changing Shins and Stocks Share This Article! FacebookEmail