We had a couple of shooters there running our parts and logo, but we didn't make it ourselves. If you check our Facebook page, they usually give us a shout out linked from somewhere. (Can you tell that social media isn't my forte?)
As to your specific gun, the word 'Cerakote' combined with the word 'used' always sends up a bit of a red flag. It is not uncommon for an inexperienced Cerakote applicator to turn a gas shotgun into a single shot by coating the wrong parts. When you tear it down, ensure that the following parts have not been finished with Cerakote:
Magazine tube
Piston (or rings)
Cylinder (in barrel, where the piston lives)
Receiver rails
Bolt
Slide (Bolt carrier)
Cerakote is a great external finish, but it does add to tolerances on moving parts. It also wears against itself quite easily and combined with lube creates a gritty mess of friction at contact points until it wears completely away. If your gun is Cerakoted on any of the above surfaces we will need to address the severity and best way to work around it.
If your gun is free of excess Cerakote, the MST and CSP (possibly ASR too) are the places to focus on for improved cycling of light loads. A 1 oz, #7.5 is about the bottom end of what a factory 930 is expected to cycle. If you stay away from hot slugs and buckshot, getting those lighter to run reliably should be easy.
If you order a Combo from us, mention that you started this thread at MossbergOwners and we'll make sure at least one of your kids can keep their head warm.
William
http://www.OR3GUN.com