As far as a 410 pump gun I don't think there are too many available tacticool options, most seem to be made for 12 gauge. I would leave it alone, myself. Just get the shorter cylinder bore barrel and you can do as already metioned, change it back if you want to.
I'm a .410 fan myself, I carry them around our homestead, they are tools. I have a single shot that I put a sling on, a SXS double barrel, and my absolute favorite of all my shotguns - a Mossberg 183KE bolt action two-shot, with C-Lect Choke.
Rigged for Quiet - you absolutely must get a bolt action shotgun. They are just so darn cool. At least one for each gauge. Seriously, the old Mossberg bolt action shotguns and 22 rifles are becoming more than just cult classics now and prices are rising.
Besides the Mossberg 410 I've got a Mossberg Model 85B 20 gauge bolt made in 1940 and a Harrington & Richardson Model 120 16 ga bolt also made in 1940. The days these were $50 are gone, now they are around $150 when you can find one.
And yes, for the know-it-alls, I also have other gauge shotguns. Pumps, SXS, O/U and single shot. So you don't have to feel the need to make comments about my firearm choices. (I just had to let out that short rant, thanks.)