Sidearms & Scatterguns Glock sight work_one little box is now checked.

[LRI]

Necessity is the mother of invention. So it is said....

Recently one of our dealers asked us to do some slide work on a Glock. Sourcing solid, micrograin carbide tooling for this proved difficult. -as in, no one seemed to have it. That box is now checked.

LRI is now making its own tooling for barrel work and Glock sight installation. These cutters are solid, micrograin carbide and ground to 74*.

In stock and ready to ship.

Happy to help.


Link to this tool

 

[hermosabeach]

Now we all want to see a machining video or 3

 

[LRI]

No vids, sorry, but here's a couple pics.

RMR in the "Race#2" configuration along with some "cool guy" cuts up front.

 

[JWHITE]

When will there be a group buy on Glock RMR cuts????!!!

 

[jdodd]

Love the irons forward rmr setup.

 

[LRI]

When will there be a group buy on Glock RMR cuts????!!!

That is a great idea! This pistol stuff is new for me so the learning curve is a bit slow. I just lack the vocabulary as its never really been work that I've gone after prior to one of our dealers requesting it.

That said, it is just machine work and I like to think we have a good handle on that.

Maybe in the fall we'll pursue a GB.

C.

 

[LRI]

Here's today's fiasco:

Trijicon 1911 RMR sight adapter (PN CA4280c0600757) stuffed on top of a Smith&Wesson SW1911TA. One single setup. Fully automated now.

Modeled the slide and the sight mount in Solid Works first. Would much rather cuss there than make the phone call of shame...lol.

Checking the fit. Nice when the holes line up! One little thing I did here was ID bore the holes to size using a 1/16th endmill. If you look close, you can see the hole(s) are flat bottomed. Nice because it provides a little extra clearance for the thread mill and it gets the effective diameter all the way to the bottom. Helps to ensure the head of the screw does the work instead of the bottom of the screw. (which almost always results in a boogered thread that now has to be run through the entire length of the threaded hole before it comes out. -A great way to kill a part and/or strip the head out of a screw.)

Off the machine finish. Not sure how that broken hole is going to play. The print provided by Trijicon is pretty particular about installing this plate -.102" from the bottom of the front sight dovetail. This hole appeared at around -.085". Not my first choice, but not much a guy can do about it either.

Video clip proofing out the probe routine for setting this job up.


Video clip threadmilling 6-40 screw holes

 

[hermosabeach]

I read "on the internet' that some machinists want the RMR before they mill. There are some variances with the RMR and 4 mounting holes so it is better to have the RMR on hand.

Anyone know if this is true or not

 

[JWHITE]

I read "on the internet' that some machinists want the RMR before they mill. There are some variances with the RMR and 4 mounting holes so it is better to have the RMR on hand.

Anyone know if this is true or not

I haven’t heard that (not at all saying it’s not true).

I know some of the local machine shop jobs being done don’t leave the two “pins” in the front. This puts you relying solely on the two 6-40 screws.

Reputable places that do these correctly haven’t requested the optic that I know of.

 

[mwinter501]

I read "on the internet' that some machinists want the RMR before they mill. There are some variances with the RMR and 4 mounting holes so it is better to have the RMR on hand.

Anyone know if this is true or not

That's what Mark Housel of l&m told me when I asked him to machine my slide years ago. he said he machines the pocket specific to that sight so theres as little wiggle room as possible. He said that will lesson the stress on the sight in the long run.

I cant confirm anything, just parroting what he told me. I can say that I've shot that same sight an awful lot, dropped it, etc, and have never had any problems or had to re zero

 

[Aaros143]

L&M and ATEI do it. ATEI has two options. They'll cut a general pocket, or custom fit a RMR pocket.

 

[hermosabeach]

Here's today's fiasco:

Trijicon 1911 RMR sight adapter (PN CA4280c0600757) stuffed on top of a Smith&Wesson SW1911TA. One single setup. Fully automated now.

Modeled the slide and the sight mount in Solid Works first. Would much rather cuss there than make the phone call of shame...lol.


View attachment 7125273


Checking the fit. Nice when the holes line up! One little thing I did here was ID bore the holes to size using a 1/16th endmill. If you look close, you can see the hole(s) are flat bottomed. Nice because it provides a little extra clearance for the thread mill and it gets the effective diameter all the way to the bottom. Helps to ensure the head of the screw does the work instead of the bottom of the screw. (which almost always results in a boogered thread that now has to be run through the entire length of the threaded hole before it comes out. -A great way to kill a part and/or strip the head out of a screw.)

View attachment 7125274


Off the machine finish. Not sure how that broken hole is going to play. The print provided by Trijicon is pretty particular about installing this plate -.102" from the bottom of the front sight dovetail. This hole appeared at around -.085". Not my first choice, but not much a guy can do about it either.

View attachment 7125275


Video clip proofing out the probe routine for setting this job up.


Video clip threadmilling 6-40 screw holes

I believe the broken hole is the extractor channel showing... I think that is a little deeper of a melt into the slide...

 

[Centuriator]

Very cool.