I'll wait for the 3rd revision before I buy one.Yes - It's the OpSol Mini shell adapter. It's a hunk of form fitting rubber that fits in the elevator area.
https://opsolmini-clip.com/
It's on its 2nd revision. Well worth the $17. Works really well if you have a Mossberg/Maverick. Too bad they don't have one for the Remmy's.
Looking to buy a cheap combo shotgun. Anyone have either? Likes, dislikes. Thank you
The Maverick 88 is an economy version of he Mossberg 500 series
"...economy version of the Mossberg 500 series and..." An 88 is a Mossberg M500. All parts, especially barrels, are interchangeable. However, if aftermarket stuff matters to you, there isn't a lot available for any Mossberg. Difference in price on a 'Combo' is about $100. The 500 being higher.
The mini shells are not something to worry about when deciding which shotgun to buy.
The Savage 320 is a Stevens brand made in China.