Hello I wanted to support an American company so I have recently purchased a Mossberg 930 Home Defense shotgun with the 18.5 inch barrel ( 12 gage 8 shot capacity). I have read several posts about the loading and ejection problems with this model. I have purchased the Or3gun security combo and the Or3gun ECF-930. I would like to know if I should order the Or3gun CFR-930 field fit. Is there an after market tube extension that I could swap out for the stock one and still have the same shot capacity? This shotgun will just be for home defense. I would rather purchase the upgraded parts and not have a problem. If I pull the trigger I want it to go boom. Thanks in advance for sharing your knowledge with me, lots of good information on this forum.