Quoted:
I was at a shotgun class and watched an 1100 completely shit the bed. Poor gas system seals/issues. I personally would not consider any auto out there over any Benelli m1, m2, m4, even the m3 for a tactical gun.
wow, you are basing this on one example you personally witnessed. BTW, what does "Sh!t the bed" entail? Did the firearm need a daiper change? The OP asked for some help and all you do is crap on his platform from your plethora of experience.
I am not saying that are not challenges to running an 1100 (like any other firearm) but dont just jump up start bashing if that is ALL you can offer, it is not like he "Hey what tactical shotgun should I buy". The op wants to mod a fud gun he already has. Gecko45 would be proud of you...
Op I have a 1100 Tactical that I have been shooting most of the year so far. I habe no issues except in the beginning when I ran some very light loads. Buckshot, slugs, and #6 over 1300 fps have been flawless. I sent the barrel to Guncat and had it threaded for REMChoke tubes. Pics when I get home. Do a search, there is a lot of information about 1100s on here and on the net, especially concerning what you need to do to ports if you shorten the barrel.