MGW Sight Tool, Support Block

[aerodan]

Hi All,

Long time lurker and first time poster - I've been mainly a M&P 9R shooter but recently acquired a Shield for carry. I was lent a brand new MGW Shield specific sight tool. This version comes with a white nylon "Support Block", but no instructions. Does anyone out there have a quick shot of how the white nylon support block is supposed to be mounted?

MGW are specific in their instructions that it must be used, but not about the orientation.

Be safe, and thank you for the fantastic site!
-AD

 

[davemercer]

I think maryland gun works is now in Ga and this is the place. But not sure, so you might want to call and ask, if they are the sight pusher guys and if they say yes, ask them your question on use of block.

https://www.facebook.com/pages/Maryland-Gunworks/138320439548473

 

[MP40cMN]

Here is a pic of mine.

 

[aerodan]

Fantastic, thank you Dave and MP40cMN - that's what I needed. Maybe this thread will stand to help someone in the future - tip: I exposed the rear sight to a few seconds of a low heat flame (blue flame butane cigar lighter, just a few seconds though as there's plastic in the slide) which did a great job of unlocking the locktite (or whatever) is used to keep the sight lock screw in there so well. The lock screw came out with no issues. I exposed the sight itself to the same heat and then popped it into the freezer for a few minutes - and the rear sight came off without issue. Heat expands, cold contracts is the theory that's served me well on other projects.

Thanks again,
AD

 

[epj]

For anyone else, be very cautious when heating the sight or slide. There ia a plastic plunger under the RH side of the sight that could be damaged if over heated. JFWIW.

 

[CB3]

For anyone else, be very cautious when heating the sight or slide. There ia a plastic plunger under the RH side of the sight that could be damaged if over heated. JFWIW.

Correct. Heat just the sight set screw rather than the whole sight (and the plastic cap underneath it).

Use a cheap 90 degree Allen wrench of the correct size as a heat sink. Hold it in the screw head with pliers. Heat the wrench. It will heat just the screw.

Then use a driver and Allen bit of the correct size to remove the set screw.

I would not heat the whole sight, but putting it in the freezer for a half hour might help it slide out of the dove tail left to right. However, nothing beats a sight pusher for this task, especially not pounding on the sight with a punch.

 

[epj]

I have two Shields that I'm changing the sights on right now now. I'll take some pics as I go. Someone posted something similar last week, but it didn't turn out exactly like he wanted. Maybe this will be helpful.

 

[Hamfisted]

There's not THAT much loctite on the set screw. A good quality allen wrench will easily pop it loose. With the slide in the tool the nylon block can only fit in one way. I recommend spraying some PB Blaster penetrating oil on the sights before trying to move them. Some people like to throw the slide in the freezer for an hour just prior to working on it. Make sure the slide and block are very snug too. Work under a bright light and check tool to slide clearance closely to avoid marring your slide. If you have one available a vise is an excellent helper.



-Mike

 

[aerodan]

Thanks Mike, for some reason mine had enough red locktite on it to hang me from the ceiling by my heels. It was on the lock screw and under the sight itself. Front sight came out like butter, no heat needed. Man they really jammed the rears in there though. Luckily, the tool did it's job.
AD

 

[epj]

I got the sights changed out on both Shields yesterday am. The job went without a hitch. I started on my illustrated "how to" thread and had to break off and do something else. I'll try to finish today or tomorrow and get it posted. My pics aren't as good as I would have liked, but they will do for training purposes. BTW,'the Shield 9 set screw absolutely had to be heated. On the .40, I sort of tentatively tried it without heat and it popped loose without a whimper. It only had one small dot of loctite on it. Sort of like its supposed to. Stay tuned.........

 

[davemercer]

Correct. Heat just the sight set screw rather than the whole sight (and the plastic cap underneath it).

"Use a cheap 90 degree Allen wrench of the correct size as a heat sink. Hold it in the screw head with pliers. Heat the wrench. It will heat just the screw...."

I have used basically same technique with success. I bend paper clip straight, hold in small vise grip, heat end of paper clip and apply paper clip to screw.