Here's a how not to!

[chicago]

So, tomorrow is supposed to be a great day, so I'm thinking I'm headed to my favorite field, FoxRiver Games.

So being the diligent professional I am I went downstairs and got everything ready, including the makers (Silent Knight and Deaf Leopard). Checked batteries and sights.

As I was setting down the Silent knight, my mp7 with the EOtech sight, I just happened to notice a sliver of day light between the picatinny and the main body of the the marker (and worst of all, it's at the business end - kinda like the opposite of shimming.)

Of course not knowing whether it had loosened up over time or always that way, I had to demount the EoTech and undo the old, old screws. I then tightened it down and saw no more light. I felt happy and remounted the EOTech. But, being me I also threw a laser bore on to see if it was still zeroed (which with my luck it was not - windage off - who knows about elevation). I wasn't that surprised, the whole pictanny rail moved when I loosened and then tightened it back down.

The moral of the story, the "how to" here. Well, it is to pay attention to those picatinnies as well. I'll be looking on line next week for a replacement rail. Cause, when I set it down to go back upstairs, there again was the daylight, haunting me!

p.s. I remembered when I got back up here to the second floor, I hadn't turned off the EOtech. Two more flights down, two more flights back up. So, I thought it might interest some of you - not my ordeal; who cares about a foolish old man. But, it is something else to watch out for if you think of yourself as a sniper and accuracy nut, picatinnies, check them for gaps and alignment!

[joshsmithers]

So the screws on the picatinny came loose... that worries me. I wonder if that's something that needs to be lock-tited down. I'm always a fan of rigidity in the set-up of precision instruments.

[chicago]

actually, I tore the whole thing down and all the screws were tight. The rail itself was warped. So, I ordered two new six inch picatinny rails on line. But, guess what, the holes didn't line up. Ops Gear, maker of the MP7 shroud used a cheap plastic for the rail and there were actual two rails.

I order a different set. Same problem. So, tried switching the small rail in the front around with the bigger rail in the back (so that the rise, warp was in the every front of the gun where the MBus front sight was. I could then adjust that separately). However, again, the holes didn't line up!)

Finally, I put it back to almost it's original state, but reversed the back larger rail - the holes too my surprise lined up! Now the warped area is at the rear of the gun where the MBus rear sight sits. As opposed the acting like a "counter shim" in the middle of the rail. I also ordered one more exactly twelve inch rail with only two holes in it. One at each end. Maybe they'll align!

I know I could drill holes at the actually locations and countersink the screw holes,etc. But, I don't have a drill press anymore or access to a machine shop so I'd have to do all that work with an older than dirt dremel by hand. So, I'd rather order/try one more another inexpensive rail (if this one doesn't wok, I'll only have to drill one hole!).