Why can this not ship to California??

It simply has to do with the "materials used is known to cause cancer" warning label. This must be on the packaging somewhere, and also in the description of this item. A lot of optics are mistakingly "excluded" from shipping to CA because of this. And the listers are clueless as to how to "uncheck" the box that Amazon turns on automagically when listing these items.

Will this fit the Springfield xdm elite osp and what plate do I use?

Springfield uses the SMS footprint (Shield) standard. On my XDS, the SMSc or RMSc (Again Shield) fits best are those are the same width as the slide on that pistol. You will need an adapter for this (holosun) to fit. Holosun uses a MODIFIED SMS However. Which means that if you're willing to grind off the rear two mounting lugs, and lower the height of the front two (grind down) it'll fit on like a glove. WARNING: Check with someone who knows before you do any modification to your slide!!! This worked great for me, but I can not guarantee that you'll have the same results. If you're not experienced at working on pistol slides, I strongly advise you take it to someone who is. I take no responsibility for any of this advice.

Does this sight work with s&w m&p 2.0 ?

You don’t have to mill the slide. There are mounting plates that will use your rear sight dovetail. Look for EGW guns

Is this the correct model for the FNX -45 tactical?

My 507c X2 fits just fine on my FNX-45 tact…

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HOLOSUN HE507C-GR X2 Open Reflex Green Circle Dot Sight Solar Model

HOLOSUN HE507C-GR X2 Open Reflex Green Circle Dot Sight Solar Model

Product ID: 726507152

Details

Brand
HOLOSUN
Color
Black
Item Weight
0.09 Pounds
Magnification Maximum
1 x
Magnification Minimum
1 x
Material
Aluminum

⚡Shake Awake Activation

🔄Multi Reticle System

☀️Solar Failsafe Power

Description

🎯 Lock, Load, and Lead with Laser Precision!

BUILT TO OUTLAST - Rugged aluminum housing and lifetime warranty mean this sight is your forever shooting partner.
INSTANT ON SHAKE AWAKE - Your optic wakes up with the slightest movement—no more waiting, just instant target acquisition.
CRYSTAL CLEAR PRECISION - Multilayer coated lenses deliver max light transmission and glare reduction for flawless clarity.
UNSTOPPABLE SOLAR POWER - Never lose sight with solar backup that keeps your dot lit even when the battery dies.
ADAPTIVE RETICLE VERSATILITY - Switch effortlessly between a crisp 2 MOA dot and a 32 MOA circle for any tactical scenario.

The HOLOSUN HE507C-GR X2 is a cutting-edge open reflex green circle dot sight featuring solar failsafe technology, shake awake activation, and a multi-reticle system. Designed with durable aluminum housing and multilayer coated lenses, it offers superior brightness, clarity, and adaptability for professional-grade target acquisition. Backed by a lifetime warranty, this optic ensures reliable performance and longevity for serious shooters.

Specifications

ASIN	B08G6CJL8C
Aiming Scope Sight Pin Size	2 Mils
Amazon Bestseller	#393,719 in Electronics ( See Top 100 in Electronics ) #465 in Rifle Scopes
Brand Name	HOLOSUN
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (1,272)
Global Trade Identification Number	00810047071280
Item Dimensions L x W x H	45L x 29W x 29H mm
Item Display Weight	0.09 Pounds
Item Weight	0.09 Pounds
Lens Color	black
Magnification Maximum	1 x
Magnification Minimum	1 x
Manufacturer	HOLOSUN
Manufacturer Part Number	HE507C-GR-X2
Material Type	Aluminum
Model Number	HE507C-GR-X2
Mounting Type	Picatinny Mount
Night vision	Yes
Product Style	solar
Reticle Type	2 MOA Dot & 32 MOA Circle
Sport Type	Airsoft
Thread Type	UNC
UPC	810047071280

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