Author Topic: Sight loose... What size Allen key?  (Read 218 times)

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Online bsand

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Sight loose... What size Allen key?
« on: February 15, 2017, 08:26:20 PM »
Well I was dry firing yesterday, noticed that my rear sight was way out of alignment. I purchased this shadow (91030) from you guys back in December.
Now I was planning on fixing it myself, but I can't even get the Allen screw to loosen. The supplied Allen key (with the gun) doesn't work nor does my Allen key. Like it feels like it's grabbing but just ends up spinning and rounding the edges of the Allen key.

What size is the Allen key screw? 




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Offline novacz

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Re: Sight loose... What size Allen key?
« Reply #1 on: February 16, 2017, 12:25:07 AM »
I don't have my hex key set handy at the moment, but I'm almost positive that it takes a 1.5mm wrench

Online bsand

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Re: Sight loose... What size Allen key?
« Reply #2 on: February 16, 2017, 12:31:24 AM »
Figured it out, took it to the auto shop supply (slide only) and it's 1/16"!

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Offline M1A4ME

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Re: Sight loose... What size Allen key?
« Reply #3 on: February 16, 2017, 07:59:23 AM »
If the inside of the screw is slightly damaged/worn, it might be a good idea to replace it with a new one with nice sharp corners inside.
Better to have it and not need it, than to need it and not have it.  So, if you see me walking the dogs with my SIG 556R, its okay.

Online bsand

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Re: Sight loose... What size Allen key?
« Reply #4 on: February 16, 2017, 07:03:41 PM »
No damage has been done to the screw  or sight. Only to my slide as I didn't tape my brass punch and it cracked the poly coat :(

Zerod it today at 25y, only took one adjustment at 10 yards and I was hitting where rear sight was aiming.



My zeroing rig for kicks lol



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Online bsand

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Re: Sight loose... What size Allen key?
« Reply #5 on: February 20, 2017, 08:27:46 PM »
The gun has czc's competition rear sight. There is only one set screw and it was 1/16". Issue is fixed now, and well I'm going to be getting away from fixed sights as I'm giving carry optics a try.

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