The Versa Max Sportsmans does NOT have the following:
Adjustable Drop, Cast
Overmolded Grips
Hard Case
Length of Pull Kit
HiViz front sight with green, white, or red (have ivory bead instead)
Comes with 1 modified Pro Bore™ Choke Tube vs 5 in the standard Versa Max (the tactical models come with a tactical choke and a IC choke)
If the Sportsmans model fits you it is a nice way to save some money.
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That is a Nordic components mag tube extension that comes with the tactical models. I wrapped it with Mcnett vet wrap to dampen vibration in the tube from transfering into the mag spring. I notice a slight ringing sound when I nocked on the extension with my knuckles. It also prevents that metal to brush sound you can get when moving a gun through some brush to get a shot on a yote that is coming in from an angle you don't expect. I did have to make a plug for migratory bird since the gun didn't come with one. The extension adds some weight further out and can help improve your swing as well. Kind of like what you get with the extra long barreled over-unders.
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Another thing I forgot to mention about the versa max is it will cycle without the gun against your shoulder. Tried this out the second time I took it out shooting. I have only had one hunting situation a few years ago were I had this happen but I know if it happens again everything will work. Not all autoloaders will cycle if the gun moves too much during recoil. I saw this demonstrated to me years ago when comparing gas vs inertia driven autoloaders.