Have an M2 Field 12g (not the "tactical" model) with the receiver not drilled and tapped for mounts.
From what I've read, the top of the receiver is too thin to do this.
Have three barrels for this gun and love it. One is a rifled slug barrel.
Bought it prior to noting the lack of mounting points. (I know, shoulda gotten an M4.)
Does anyone know if any way to mount a scope on this receiver? Looks like there is an aftermarket rail out there that has a forward mount on the barrel/extended mag tube clamp, but still needs somewhere to mount on receiver. Or can it be welded to receiver instead of drilled and tapped? Thanks in advance for any words of wisdom...even if it's just a straight up "NO--forget about it!".