Yes, this Safariland 6365RDS ALS/SLS Low-Ride Level lll Retention Duty Holster will be compatible with the Holosun 507C as long as it is direct mounted, or mounted via an optic adapter plate (Glock MOS, S&W C.O.R.E. etc) to the slide.
The Safariland 6365RDS ALS/SLS Low-Ride Level lll Retention Duty Holster will accommodate a Holosun 407.
Unfortunately, this Safariland Model 6365RDS ALS/SLS Low-Ride Level-III Duty Holster is not compatible with the P226.
Yes, any of the Safariland Model 6365RDS ALS/SLS Low-Ride Level-III Duty Holsters that are compatible with the Gen 4 Glock 17 MOS will be compatible with your Gen 3 Glock 17 with and optic.
These Safariland Model 6365RDS ALS/SLS Low-Ride Level-III Duty Holsters will not work with a CZ 75 P01. The holster at the link below will work with the CZ 75 P01.
https://www.opticsplanet.com/safariland-6287-concealment-sls-belt-holster-stx-tactical-black-left-hand-6287-290-13.html
Yes, the Safariland Model 6365RDS ALS/SLS Low-Ride Level-III Duty Holster will work with a Sig P320X Full Size and SureFire X300U. The Safariland Model 6365RDS ALS/SLS Low-Ride Level-III Duty Holster should also fit the Aimpoint ACRO P2 just fine.
Yes, the Safariland Model 6365RDS ALS/SLS Low-Ride Level-III Duty Holster can still be used even if you do not have a light attached to your Sig P320.
Yes, the Safariland Model 6365RDS ALS/SLS Low-Ride Level-III Duty Holster will fit a Smith and Wesson M&P 9mm CORE. These holsters will fit a Streamlight TLR-1 and Streamlight TLR-1HL. So if your Streamlight is one of those models these Safariland Model 6365RDS ALS/SLS Low-Ride Level-III Duty Holsters will work.
No, but if you click the link below it will take you to some Safariland Holsters that will fit a Springfield XD9.
https://www.opticsplanet.com/safariland-holsters.html?_iv_gridSize=120&_iv_parent-gun-model=springfield-armory-xd
Yes. The 6365RDS Holser is compatible with the RMR and will fit Streamlight TLR-1's and TLR-1HL's.