Leaderboard

My current set up w the unity switch. I went with the IWC pic rail to simplify removing the light.

Same, that's where I got my start too. I run a MAWL and a Modlite white light on my go to AR. I would notch a set of handguards for whatever pad you want to use, then drill two small holes to run zip ties thru the plastic to secure it in place from the inside in two places. Maybe use something like this switch. https://modlite.com/collections/switches/products/modlite-modbutton-lite?variant=32291865624612 Then if you're concerned about a method of using a constant on setting, I think you could use one of those Surefire DSOO tailcaps that offers up a switch port and a momentary/constant on.

Agency rail. Really not a big deal pulling weapon apart unless I'm deep cleaning the pistons, which I just have to undo some more screws... A bit more work, but that that much of a PITA. Would be a pain the the field but I'm not stripping down to that level in the field. 7". I had the 4.5 and was too short. Would be fine if I moved light to other side. Arisaka mount cause the Agency rail covers the IWC mount unfortunately. I prefer a remote button cause I've split thumbnail before keeping thumb on back of light button.

I haven't been impressed with any of the rail systems for the Benelli M4 to be honest. Their ergonomics suck, complicate disassembly and add a bunch of weight. Tape switches themselves are kind of shit, even the "good ones" like TAPS. The only ones that are tolerable are the Unity Tactical variety called the HotButton. With an SBS, the weapon light will be closer to the muzzle which will equal a lot less barrel shadowing. If you must have a tape switch, I'd look into ways of attaching it to the OEM handguards and stick with the IWC mount. That mount is hard to beat, hell, it's probably the cheapest option out there too.

Have the KZ , seems to have plenty of clearance.

I’ve been shooting shotguns since I was legally old enough to hunt. Maybe I’m not tactical enough, or I’m doing things wrong, but I’ve never felt the need to have a soda can for a charging handle on any of my semi autos. All the more reason to stick to the stock one in my M4.