My posting is based on the fact that at one time or another I owned five Remington 1100s and learned to carry spare parts to replace anything that could and would break during a shoot. Also, you learn quickly to not just do just a wipe down after shooting, but after a couple of hundred shells also do a cleaning breakdown.
Abandoned Remington with the premise of breakdowns rare on a Beretta semi and complete cleanings something you could easily put off, outside of wiping down.
When I was shooting the Beretta A400, if I had issues it was 100% of the time the Piston Assembly that needed cleaning. I read in an article the Piston Assembly was the A400s Achilles Heel. I would guess in later production runs they addressed the issue but I wouldn't know. When I owned mine I cleaned the Assembly after every third visit to the range, I also carried a spare.
The A400 is long gone and we have been shooting a pair of A300s for the past several years (sporting models). I carry no spare parts. I shoot mine straight out of the box. My wife had the stock shortened by 1/4 inch and had an adjustable comb installed (both by Graco). Women usually need a higher comb. She shoots skeet, trap and sporting!
I find the A300 Piston Assembly a tighter fit then the A400, just by a hair.
We've been having zero issues with the A300 Piston Assembly. The first three photos is the Assembly after 1200 rounds. The last photo is after a cleaning (used a cleaning brush).
