http://forums.benelliusa.com/showthread.php/32842-Thinking-of-Getting-a-Benelli-M3-convertible-Post-pics-of-your-M3/page
To bad all the images were removed by forum ADM.
Super Nova C-stock will work with newer generation m3's. Surefire m1 light handgaurds will not work. PM forum member heckler&kochp2000, Here is his web site http://www.benelliparts.net/store/c1/Featured_Products.html
The OEM rail has 5 bolts to secure it to the receiver. From the web site's pics, it appears to have only 2 bolts to secure it? Let us know how it holds up over time. Thanks!
I installed an OEM extended safety on my M3; it makes disengaging effortless while not jutting out to Jupiter.
http://www.midwestgunworks.com/page/mgwi/prod/60597
Standard Stock
https://www.gunpartscorp.com/Products/1432590.htm
Tri Rail
http://www.midwestgunworks.com/mm5/merchant.mvc?Screen=PROD&Product_Code=81138&Store_Code=mgwi&search=mr1&offset=&filter_cat=&PowerSearch_Begin_Only=&sort=&range_low=&range_high=
I know this is a little off topic, but have you thought about doing something similar with the R1 series of hunting rifles. They would make great DMR's.
How is the partial co-witness: 1/4, 1/3, 1/2, 3/4.... The angle and movement in the video make it difficult to judge the resulting sight picture. Your insight would be greatly appreciated! I'm still on the fence with going to an RMR over my current T-1.
The front barrel clamp came with a surecycle magazine extension.
http://www.brownells.com/shotgun-parts/magazine-tube-parts/magazine-tube-extensions/shotgun-magazine-tube-extension-kit-prod23213.aspx
The flashlight rail is a GG&G for an 870 that I ground with dremel to fit. I increased the diameter for the magazine tube and ground the top to fit the square barrel junction. It fits solid with no movement.
http://www.gggaz.com/remington-870-sling-and-flashlight-combo-mount.html
The FFT M1 (Trigger/Hammer/Disconnector/Follower) works perfectly on my M3 build. The Supernova recoil tube has the same thread pitch as my newer model 11606 M3 receiver.