Benellisam

I’m in need of a recommendation for a gunsmith to do some work on my earlier model m3. Specifically looking to get the receiver hole drilled and tap (enlarged) to fit benelli adjustable stock tube and another drill & tap on top for rmr optic plate. I searched forum and members recommended Briley. On their site, they state that they do not accept work on the M3. Thank you in advance!

Got it, can you elaborate more regarding "you will need it both M21 & M19" Thank you so much for confirming this!

Hi all, new here, thank you in advance for help! My question is regarding my new to me M3 which I'm in the midst of modding. I've scoured these forums and numerous other places but just can't seem to get a straight answer.. I just bought a Benelli 61171 Supernova Collapsible Stock / MR1 from Benelliparts.net. Now I need the adjustable stock tube and this is my problem/question. My M3 is from 2002 (code BN) and it appears that the tapped hole in the receiver is the smaller vs. the newer variants of M3 (I read somewhere 19 x 1 mm vs, 21 x 1 mm). I learned this because the stock tube I bought from (Midwest : 61364 Benelli SuperNova Multi Position Stock Tube for Collapsible Stock, For Serial #'s Before Z543224) was too big. So I just bought the other from them (Benelli M3/M4/Supernova Tactical Stock Tube, For Serial #'s Above Z543224 61026). However, I just read somewhere else, same thing happened to someone else and that didn't fit either. So do I need to find this one in stock somewhere (Benelli Supernova or MR1 5 Position Recoil Tube SKU: 70071)? Or am I going to have to use what I got and re tap or re thread the current part? Thank you so so much in advance for any insights!!!!