This is a discussion on Holosun 507K mounted to P365 slides milled for SMSc within the P365 forums, part of the SIG Sauer Pistols category; If you had your P365 previously milled for a Shield RMSc dot - you have some more work to do. (Title of thread should read ...
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|06-29-2020, 02:44 PM||#1|
Holosun 507K mounted to P365 slides milled for SMSc
If you had your P365 previously milled for a Shield RMSc dot - you have some more work to do. (Title of thread should read RMSc)
The milled bosses do not fit. Specifically the ones milled in by Maple Leafs FA's.
They milled mine about a year ago, great work and great service. Milled prior to the announcement of the K series by Holosun.
The rear bosses need to come off completely.
The front bosses need to be filed most of the way down.
I assume the 407K would have the same fitment.
I noticed on JagerWerks' site that they have a new cut already designed.
Last edited by rpmstl; 06-29-2020 at 03:26 PM.
|06-29-2020, 03:23 PM||#3|
Join Date: Jun 2013
Likes Received 49
I was told by John at Mapleleaf that both will fit the RMSc cut with modifications. However, he states the 507k is slightly shorter (front to back) than the RMSc, and shaped slightly different in footprint, so that modifying the RMSc slide cut for the 507k would not be a great fit. I have an RMSc, (glass lense) in hand so I went with the straight RMSc cut. I have a 507k on order. Iíll take measurements and Compare shapes when I get the 507k. Nothing like first hand measurements. YMMV.
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|06-29-2020, 04:31 PM||#7|
Join Date: Apr 2020
Location: N.Central FL & NC Mtns.
Likes Received 265
I recently had my P365 milled by Fabricated Arms to fit the HS 407K/507K as well as Rzero. Chris Richardson specifically waited to mill until he got the new specs from HS, and yes the rear bosses are eliminated and the front bosses are shorter to accommodate. I wanted to preserve the rear sight so it's milled forward.
Of course I'm still waiting for my 407K to ship; but I trust it will fit as FA got the measurements directly from Holosun. I had them do a 'patina' cerakote on my 2+ year old slide (nearing 5K rounds) while it was in their shop. Very pleased with their work. -Vinny
Last edited by CZSIG-Vinny; 06-29-2020 at 04:34 PM.
|06-30-2020, 11:06 PM||#8|
Join Date: May 2018
Location: Northern Kentucky
Likes Received 40
Any chance you can take measurements from the front of the slide to the front of the optic and maybe the height above the slide the optic sits plz (I guess I could estimate that based off the optics height)? Iím looking at getting this set up and need to send the measurements to get a OWB holster made.
Thanks in advance,
Sent from my iPhone using Tapatalk
|07-01-2020, 05:14 AM||#10|
21mm from top of slide to top of optic.
|07-01-2020, 12:26 PM||#12|
Great trip to the range.
Got in a 100 round session, between the rain drops.
The 507K was excellent. Highly recommended. It did its job just like its big brothers.
I'm glad I cancelled my Romeo Zero order 6 months ago.
While I noticed some slight magnification playing with the dot at home, I never noticed it during actual shooting. Didn't even think about it until right now.
The small window with wide frame may make it slightly more difficult to acquire the dot than a larger window with a thin frame. This can be overcome by practicing ones draw and press out. Once you get this figured out, you likely will not notice how robustly this little dot is put together. We will see how well it holds up during the upcoming Sage Dynamics tests.
The dot transformed the short barreled, relatively difficult to shoot accurately carry piece into a decent range tool. It's always been a fine carry piece that was adequate for up close target practice. But it has a dual purpose now. Of course, any dot attached to this pistol would likely provide the same benefit.
I shoot mostly 8"round steel knock down plates. I'm a dot shooter a vast majority of the time. Previous sessions with this small pistol have always taken me a few rounds to get centered on target from 20-25 yards. With the dot attached and zero'd, I never missed a shot. That has never happened with this pistol. Blew the center out of a target from 12 yards.
The Holosun 507K circle/dot reticle has a lot to do with it. I find this reticle very quick for dot acquisition and target transitions in a timed drill scenario. I'm faster overall with my Holosun's compared to my RMR's or other small single dot sighting systems.
I hope you guys like yours as much as I enjoyed mine today. Can't wait to put a few hundred more rounds through it.
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