Hello! I recently purchased a maverick 88 fde 7+1 for $219 and thought it would be great and also i have one problem on the stock where theres a cut out for a drill swivel install i was told to go to a gunsmith to have it done or i could do it! So i really like to have a sling on my maverick 88 so i oreder this uncle mikes detachable sling swivels from amazon and i watched a YouTube video how to diy it and ill post the link here and so i visit a gunsmith and showed him what i wanted for my maverick 88 and said that will not work and i showed him the uncle mikes swivel parts and it says also for mossberg 500 shotguns and the maverick 88 and he said it will just pull out with the sling and will have to put in a piece of wood or find a new stock and it will crack and i showed him the youtube video how to and he said well i need to find the man on youtube and he offered me a solution to put a sling on the stock like a three point sling and on the tube but cant shoot it with it on and would have to take it off when im ready to shoot! So i watched the youtube video where he drills the bit he had two bits and dont know what sizes and how big they are then he out the big swivel screw and put the small one of the tube and the sling and in the comments he saidnhe hasnt had a problem with it and it works and the gunsmith told me it will not work with the synthetic stock but will with a wood stock but my 590 shockwave has screwed in swivels and its brand new and so as my maverick 88 fde and i dont know what to do i would really like to somehow put a sling on my maverick 88! Any help thoughts or suggestions? And here's the YouTube video i was talking about Also i really like this maverick 88 fde 7+1 since inhad a hard time finding a shotgun that hold 7+1 hate to just sell it if i cant put a sling and swivel on it cause i looked for a mossberg maverick 88 fde stock with a installed swivel and no luck!