First off can they be done to a P226R or P229R?

Secondly what reputable shop is doing them?

Years ago I had a P226 slide cut to permit mounting a Docter RDS. It cut into the cavity* for the safety lock and spring and therefore the slide could be used only with the sight mounted, but it can be done.

I no longer recall who did the work, but it took an inordinate amount of time for the work to be completed and required a number of dunning emails, so I wouldn’t recommend the ’smith even if I knew who it was.

* Perhaps that wouldn’t have been necessary if the cut hadn’t been so deep, but I don’t know for certain. I don’t know how close the cavity extends to the top of the slide.

The exposed safety block is pretty much the standard for aftermarket cuts. I don't think you can go deep enough without getting into that channel on a regular slide. Sig did something different when they machined their factory optic cuts so this is a non-issue with those.

I had one done last year by Parker Mountain Machine and was very happy with the outcome, but I'm not sure they're doing them right now.

Here's a link to my thread on that whole process, with some photos:

https://sigforum.com/eve/forum...935/m/4700015705/p/1

ETA, Here's another thread that I started before undertaking that project, which included some great feedback from members and other suggestions for companies to do the milling:

https://sigforum.com/eve/forum...0601935/m/9060022705

Why not just buy a already cut slide from Sig? In the long run it will probably be cheaper and work better.

quote:

Originally posted by Jeepster09:
Why not just buy a already cut slide from Sig? In the long run it will probably be cheaper and work better.

Standalone optic-ready slides are $400+, if you can find one. Getting the one you've already got cut is around $200, and you can have it specifically milled for your optic of choice, so no need for plates which cost more money, raise the height of the optic, and add an additional failure point.

So the consensus is that it can be done and the pistol will operate correctly as long as the optic bottom holds the spring for the firing pin safety plunger in place.

Is there any reason that a Holosun 507 would not work? I guess I need to look at the bottom side of the optic to make sure its flat.

Which 507? It is an original with the bottom mounted battery or the newer side mounted options? Either will work, but you may need to get a sealing tab to go under the optic like the Gen 1 RMR.

507K X2 with the side drawer battery. I have one on my P365XL and really like it.

Mine is a 407K, basically the same as the 507K. Works great. Fits the slide profile perfectly, too.

Only long after I got the P226 slide and Docter sight combination did I start thinking about the question of using an open emitter optic on a handgun in inclement weather, i.e., rain. I still wonder if we’ll ever see any significant discussions of that question, but if the gun were going to be ever used in serious situations when that might be a possibility, I believe it would be a good idea to keep water from migrating into a SIG Classic line pistol’s safety lock mechanism by use of some sort of appropriate seal.

We have had several discussions over the years on milling 226's. its getting hard to find people to do it as the platform declines in popularity. And the factory milling is really not the greatest for several sight brands including the RMR as it doesn't really meet what's needed in terms of recoil lugs..
BUT at this point I have milled a half a dozen slides and some of those have been subject to the terrible conditions I treat guns for more than a decade.
Yea the type 1's had to go and I had intermittent problems (now in the history books), but in general I have had zero issues with the type 2's. And if you look back at some of my personal history that includes going swimming with an RMR milled 226 as part of a rescue more than a few times.
On an RMR you absolutely need to use the sealing plate and I also slab a bunch of dielectric grease on the surfaces. But the fact that the spring is exposed when uncovered by an optic is just not an issue. its just not. Me personally I hope your Holosun chinese optic never works and you junk it...

quote:

Me personally I hope your Holosun chinese optic never works and you junk it...

I have a couple of Romeo 1 Pro optics that I got a while back that have waiting for me to get something ready for them. I will probably use one of those on the 226 and on a 229. My feeling is if I could get optics on these two I could get 20 more years out of each. I probably won’t live much longer than that as I am 64.

quote:

But the fact that the spring is exposed when uncovered by an optic is just not an issue. its just not.

Agreed. That channel isn't watertight anyway, and the optic probably creates a better seal over the top than you're getting at the base and through the firing pin channel, anyway, so if you're getting it wet enough to get gunk in there it's gonna get in anyway.

The biggest concern would be screws shearing and the optic falling off, then rendering the FP block inoperable...but that's going to be a catastrophic and immediately obvious issue.

quote:

Originally posted by 92fstech:

quote:

Originally posted by Jeepster09:
Why not just buy a already cut slide from Sig? In the long run it will probably be cheaper and work better.

Standalone optic-ready slides are $400+, if you can find one. Getting the one you've already got cut is around $200, and you can have it specifically milled for your optic of choice, so no need for plates which cost more money, raise the height of the optic, and add an additional failure point.

The Holosun SCS320 is a direct fit with no plate. I have it on my Sig and am happy with it. The Sig slide that I have it on also came with TALL Suppressor night sights which co-witness.

I just received my optic ready slide for my 20+ year owned P226 yesterday and mounted a Holosun on it. Seems to work perfectly.

Impact Machine and C&H Precision are both pretty solid for cutting guns others will not. You may have to pay for it, but if anybody can do it, those two companies can.

I know that C&H plates are somewhat divisive but they're very knowledgeable on the slide machining side.

Thanks - I’ll check both of those companies out.

https://www.sigsauer.com/slide...optic-ready-blk.html

From Sig $379

Those Sig slides are super expensive. A good optic and that Sig Pro Cut slide would be $800++. There are many new guns with optics for less.

There are shops here that offer slide cuts for $150 or less. I will likely go that route.

Changed my mind and just ordered the 226 Pro Cut Slide from Sig. Its pricey, but if it gives me 15-20 years on the platform it will be well worth it.