what to do with this S 12

What barrel length is suggested? I've read some stories about the 8 and 10" not cycling different ammo.

Any input is welcomed.

Ordered a MD-20 today so that is checked off the list.



This is the direction I will go more than likely. Its fascinating.

12" with the drum

this

Mine is 12" and will run the federal 3 dram bird shot all day long. I did not move the gas block for mine but I did add a 4th port and polish and reprofile the rear of the bolt

Hope to eFile within a week. So far, I've added a drum.

Folding Magpul stock. Makes a nice short truck gun.