Will it fit a taurus PT140 pro millennium

It will fit with the correct adapter plate.

Does this fit the smith and Wesson m&p 40 caliber standard model

The RD3 comes with a mounting plate for handguns that are MOS ready. I don't believe the standard M&P is MOS ready, meaning that the slide is milled or recessed and ready for mounting optics. It can mount easily on a picatinny rail which is what my Ruger 22/45 lite has. Hope this helps.

Will this fit on a walther pk380?

No. The top of the slide must be machined to accept the adapter plate.

Do you know what adapter plate I would need for a Springfield hellcat pro?

Check your owners manual. I don't think you need an 'adapter' plate.

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Description

🎯 Lock on, level up your aim — never miss the shot that counts!

SMART MOTION AWAKE - Saves battery by auto-sleeping after 5 mins, instantly wakes on movement.
VERSATILE MOUNTING - Includes removable Picatinny base for quick, secure attachment anywhere.
COMPACT LIGHTWEIGHT - Sleek 0.4 lb aluminum build designed for handguns, shotguns & airsoft.
PRECISION ADJUSTMENTS - Lockable windage & elevation with unlimited eye relief for perfect zero.
UNIVERSAL COMPATIBILITY - Seamlessly fits Vortex Venom, Burris Fastfire & more — no adapter hassle.

The Ade Advanced Optics RD3-006 Reflex Sight is a compact, lightweight red dot optic designed for handguns and compatible with multiple popular mounting footprints like Vortex Venom and Burris Fastfire. Featuring motion-activated illumination that conserves battery life, fully adjustable and lockable windage and elevation, and a removable Picatinny mount, it delivers precision and versatility for professionals and enthusiasts seeking reliable, fast target acquisition.

Specifications

Brand	Ade Advanced Optics
Color	Green Dot
Style	Red Dot Sight
Sport	Airsoft
Item Weight	0.4 Pounds
Material	Aluminum
Magnification Maximum	3 x
Objective Lens Diameter	25 Millimeters
Magnification Minimum	1 x
Compatible Devices	Handgun
Mounting Type	Picatinny Mount
Night vision	No
Model Name	rd3-006A
Manufacturer	Ade Advanced Optics
Reticle Type	Red Dot
UPC	640978348645
Global Trade Identification Number	00640978348645
Item Package Dimensions L x W x H	4.7 x 3.9 x 2.4 inches
Package Weight	0.39 Kilograms
Item Dimensions LxWxH	4.6 x 3 x 2.4 inches
Brand Name	Ade Advanced Optics
Warranty Description	one year
Suggested Users	unisex-adult
Number of Items	1
Part Number	rd3-006A
Included Components	Red dot, scope mount, battery, tool, manual

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