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Viper/Venom H&K USP Sight Mount (fits Burris FastFire and Docter)
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Viper/Venom H&K USP Sight Mount (fits Burris FastFire and Docter)

Product #: 49305
Price: $49.99


In Stock
No, I do not have an ADE Red Dot
Yes, I have an ADE Red Dot and need 3/8" screws
No Thanks
Yes, Cut For USP EXPERT / ELITE (+$10.00)
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Material: 7075 Aluminum
Coating: Matte Black Hardcoat
Overall Length: 1.811"
Overall Width: .99"
Mounting Hardware: (2) 6-32 Button Head Screws, (2) 6-32 Flat Head Screws, (1) 6-32 Set Screw
Red Dot Fitment: Vortex Viper/Venom, Burris FastFire, Crimson Trace CTS-1200, CTS-1300, Docter, ADE RD3-001*, ADE RD3-02*, ADE RD3-009*

*All ADE mounts require 6-32 x 3/8" screws.

The USP Compact rear sight cut depth is .200"
The standard USP (for this rear sight cut) rear sight cut depth is .160" 

To fit the Expert / Elite the mount must be modified.

This mount fits:

USP Tactical 9mm
USP Tactical .45 ACP
USP 9mm
USP 40 S&W
USP Expert (with above mentioned modification)
USP Elite (with above mentioned modification)

The USP ELITE CUT does not work with bottom load batteries that do not have a tray (Vortex Venom). The use of a shim or cover is recommended.

Our red dot sights are meant to be installed from the left to the right (with the muzzle facing forward). The dovetail has a progressive taper to allow for easier install.

Simply remove the rear sight on your gun and replace it with our mount in order to mount yourVortex Viper/Venom, Burris FastFire, or Docter red-dot sight. No alterations are required. You can take our mount off and replace your rear sight at any time. Mounting hardware included.

Installation Instructions
- Remove the rear sight*
- Install the EGW Sight Mount in the dovetail
- Tighten set screw (if applicable)
- Place the red dot sight on the EGW Sight Mount
(placing a small piece of paper between the red dot sight and the sight mount will make for easier removal and will keep Loctite off of the red dot sight.)
- Apply blue Loctite to the provided mounting screws
- Torque mounting screws to 15in/lbs

2 Button Head Cap Screws - Provided for Vortex Viper and Venom Sights
2 Flat Head Cap Screws - Provided for Burris FastFire and Docter Sights

The screws that are included with this mount require a 5/64'' allen wrench for installation.

Modification of your firearm may nullify the manufacturer's warranty.
This product should be installed and checked by a qualified gunsmith.
No liability is expressed or implied for damage or injury which may result from improper installation or use of this product.

Click here to see a video from Vortex on how to install our red dot base on a slide.  

Warning: This product may be alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. To prevent exposure, do not alter the product by welding, grinding, etc. For more information, go to

Product Reviews

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Reviewed by TorstenHoff
TorstenHoff bought "Viper/Venom H&K USP Sight Mount (fits Burris FastFire and Docter)" on our website
11/02/2017 - 10:42:22 PM
Just what I needed
I got this mount for use with a full-size USP .40 and a Vortex Venom.

I had previously ordered another mount from another vendor that was supposed to fit this gun, but I was either sent the wrong version, or it was machined poorly. Either way, that other mount didn't fit the rear sight slot. Additionally, that mount was a two-piece design with a sight-specific base and a gun-specific mount, wedged together and held in place by set screws.

The EGW Docter sight on the other hand fit the rear sight slot perfectly, and the one-piece design is solid without any slop or wobble. The base floats just barely above the slide and adds a minimal amount of height, is nicely machined and finished, and doesn't add a whole lot of weight.

I highly recommend this base for anyone needing to mount one of the supported (or compatible) sights and who doesn't want to permanently modify the slide by having it machined.