we have had 3 of those 3901 rl w/ adj.comb 28"-- it is the lowest recoil , best lil gun but i wud suggest buying a 391 rl 28" and having the stock cut off ( which cud be added back later). if this is for a very young petite shooter, then a 3901 is the ticket. if the person has any size at all, then a 391rl i think is a better long term buy!! i will say the 3901 w/ 1oz or even 7/8 lds is like shooting a 20ga !!!! i am not exactly crazy about the simple long wood screws that hold on the butt plate and spacers ,doesnt seem that solid?those screws are about 2 1/2"long!
We have had them in our youth trap program for 2 or 3 years. Shooters that have smaller hands, short arms, and petite builds, work well with this gun. Comb is adjustable and has a memory device to slow down the parents. Mobile chokes and almost NO mechanical issues. YMMV Omaha
Bought one for my wife and she didn't like it. Nothing wrong with the gun; she just didn't shoot it well. We gave it to my sister-in-law(she is very petite}, and she LOVES it. Like Tron said, basically a 390. Good gun!