MGW and S&W brand sight pushers for 3rd gen S&W

10ring

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I have been looking for an MGW or S&W (made by MGW) sight pusher for the 3rd gen guns for quite awhile with no success. A recent thread about some homemade versions got me thinking about this and wondering why I have been unable to find these things and wondering if MGW would consider making them again if a large enough order were placed.

So I called MGW and talked to one of the guys there.

What he told me was that they discontinued production of these sight pushers during the time the 3rd gen S&Ws were still in regular production and told S&W that MGW would no longer supply them and that if S&W wanted to offer the tools they would need to find another supplier. The reason, according to MGW, is that the tolerance for the rear sight notch width on the 3rd gen S&Ws was too great, and therefore some notches were so tight that the pushers would not work. He mentioned the tolerance range, but I don't remember. Some people were resorting to all kinds of methods to gain extra leverage when using the MGW tool and thus destroying the tools or perhaps causing other damage.

The guy at MGW said that S&W uses a hydraulic press to fit the sights, so the tolerances don't cause problems for them at the factory, but on some guns a hand tool would not work. MGW did not want to deal with the problems they encountered when the pusher did not work and/or destroyed the pusher. MGW said they were not interested in making the pushers again no matter what size order one might place, because they could not stand behind the product under these circumstances.

So, if you are hoping to get an MGW or S&W pusher, you will need to find one used, they will not be made again. And, whether you buy one of those or one of the homemade deals that are springing up, don't blame the maker of the tool if you can't move your sight.

I will buy one of the tools that are out there now with the expectation that it may not work on every gun.

I am just repeating what I was told.
 
I have replaced the factory novaks with Trijicon night sights on my 5904 and 4506. I have also helped my friend remove and install sights on two of his 5906's. Quite honestly, the project has been a chore each time. We have tried different things, including borrowing a 3rd Gen sight pusher from another member, putting the new sights in the freezer while warming the slide, etc. It is just a tough job. Usually, I end up using a plastic, then most likely a brass, punch. I know you are not supposed to install night sights with a punch and hammer, but I always stay on the dovetail portion and have been lucky so far (fingers crossed). I am in the process of making my own sight pusher out a 1 1/2 ton arbor press. Hopefully it will turn out as planned and make the job of removing and installing 3rd Gen sights easier.
 
I used EPJ's first version pusher (bench vice mounted) to remove the sights from a 5946. Pushing out the rear sight was a piece of cake - and it did "ping" when it broke loose. Pushing out the front sight was problematic because of the bolt I used and the sight base thickness (very thin). I knew the old dead factory night sight was going to be scrapped so I pushed on the blade itself. The blade actually bent before it finally moved. My first attempt was to use a small brass bar between the steel bolt head and the sight base - ended up with a flattened brass bar ... the next (and successful attempt) was the push on the blade itself. I could see (and feel) the blade giving way and started to worry about what plan C would be if the metal fractured and the blade broke off or just folded over. The critical dimension (the side slope differences are a given - you should not need to adjust them in any way) for a typical metal dovetail is the width of the base on both pieces. If you "break" (remove the sharp angle) the edges of the inserted piece you will ruin it's interference fit. The key is to remove material evenly from the bottom of the sight base until the dimensions of both pieces approxiamte each other. The correct insertion depth into the dovetail should be 50% without force. Use an anaerobic thread lock fluid on both pieces and then drive the piece into place with a soft (brass or plastic) punch. It will not move and subsequent removals will be a breeze. IMHO the use of an arbor press should only attempted by someone who absolutely understands what they're doing. S&W probably had "custom" work holders to correctly and safely hold the slides while they used brute force to set the sights. Take your time - there's an old adage in the metal fab business ... "you can't put it back once it's gone". A false sense of urgency will get you into trouble in a heartbeat and buying a second sight becuase you ruined the first one defeats the purpose of DYI.
 
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