This morning as I lie awake in bed it occurred to me that didn't need to buy any more risers for my CCU. I didn't need any risers on it at all. The sights were kind of high and I'm better off without them. I only put the risers on so the front one would properly position the tri-rail for the front sight and keep it from moving. But as long as it stays put, I don't need a riser to bridge the gap. But I still had a problem. The eye relief on the 4x magnifier is only 2.5" and it was twice that far away. So I took the CCU Monorail off and turned it around backward. Then instead of not coming all the way back to the end of the receiver, it stuck out an inch and a half too far. So I took it off and chopped the end off with a hacksaw, filed it down, sanded it, and dabbed some Birchwood-Casey Aluminum Black on it. I didn't follow the directions, I just swabbed it on, waited a minute, repeated twice, rinsed it with cold water, wiped it dry, oiled it and wiped it off. I cut the rail at the back of the 4th slot from the rear and filed almost to the front of the slot, then filed it down at a 45 degree angle. I forgot to file the burr off the bottom, so I took that off with the file my multi-tool and blackened the raw edge with a Sharpie.
Now I can get a good cheek weld without having any metal jabbing me in the face, as long as I flip the rear sight up. Otherwise I can rest my nose on top of the folded sight, but there's no rail hanging over the stock to gouge my cheek. The large aperture peep sight doesn't seem to be any hindrance to aiming, so I'll probably shoot with it up at all times. Pulling the stock back one click gives me a nice LOP of 13 3/4". The next hole, the one I drilled in the stock tube, is 14 1/2". Fully closed it's 13" with the butt pad on, so a fixed stock is a viable option for most people, but it adjusts in 3/4" increments all the way out to 16", for any literal knuckle-draggers with gorilla-like arms. I have to flip the magnifier to the side to pop open the rear lens cover on my red dot, then I can flip it right back in place.
I put both of the 1/2" risers on my can cannon. The knobs on the side are so big you can't place them directly above one another, but I previously cut part off the end off one riser. When I matched the new end with the other one, it staggered the screw heads just enough to clear one another. Otherwise I would have had to put one riser on with the screws facing left and the other one facing the right side of the gun. The screw on the Firefield mount just cleared the screw on the top riser where I mounted it, too. It will be interesting direct firing the can cannon with the circle-dot reticle. Green looks better than red to me, but there may be places in the woods where red shows up better among the greenery. I use 2 Strike Industries Mini Bang Bands to to give my pistol finger grooves, and put one on my LDA 12-45.