Give your Viper or Venom Red Dot Sight a proper mounting point with the Vortex QR Mount Riser. This compact adapter is designed for these two Vortex sights and features a positive lock and one-handed quick release mechanism. It offers compatibility with Picatinny rails and provides a precise 1/3 co-witness with Vortex Venom sights. To deliver a lightweight yet durable construction, it is manufactured from an aluminum alloy and treated with a corrosion and abrasion-resistant Type III hard anodized finish

For Viper and Venom Red Dot Sights    Gives 1/3 Co-Witness with Venom Sight    Positive Lock, One-Handed Operation    Compatible with Picatinny Rails    Type III Hard Anodized Aluminum

Related Questions and Answers

Q: 1. Lenses Nikon 24-70 2.8G and 85 1.4D can't focus at the infinity mark, using FUJI XT2. However they can focus when set a little bit to the right of the mark. Is this metabones adapter a bit too thick or detective ?

A: This, of course, is not how this should work. We recommend a return or an exchange. Please contact B&H Customer Service to do so: https://bhpho.to/2caRE5L

Q: 2. What is the exact collapsed length of this Riser? For PACKING purposes.

A: The following unit is 27.17in collapsed.

Q: 3. Will this adapter work with my Nikon Full frame lens???? on the XT-1 thanks for your response.

A: Yes. No problem. Since the X-T1 sensor is APS-C sized, both FX and DX Nikon lenses will cover the frame. Full frame lenses will give you a 1.5X crop magnification, the same as on a Nikon body.It's a solid and well made adapter. As a bonus it has a well placed tripod socket for better balance with long lenses.I highly recommend it.

Q: 4. Will this work on Nikon 85mm 1.8D Lens?

A: Yes, this should work. I'veused it with manual focus, autofocus screwdrive lenses and G lenses and they all work. You do need to make sure the aperture control on the adapter and your lens are in synch on non-G lenses.Don

Q: 5. What size screws are needed to thread thru the base? I understand the length would be dictated by the thickness of the desk or wood going thru.

A: The diameter of each screw hole on the base is 1/4". You can use either wood screws or metal screws to secure the base onto your desk and select the appropriate length for the screws depending on the material and thickness of the desktop surface.

Q: 6. what is the dimensions of the base plate?

A: The dimensions of the base plate of the OC White B&H # OC52900B are 2 x 3.

Q: 7. Will this Kupo 20 C-Stand Riser fit into an Impact Turtle base?

A: Hi,Yes. The Kupo riser uses a standard 28mm/1 1/8 mount and will work perfectly in the Impact base.Regards,Will H

Q: 8. Is there any sort of desk mount/clamp that would work with this?

A: No, there is not. The Kupo C-Stand Riser Column 20" (Silver), B&H # KUKS704912 is designed for use with a C-stand base or a wheeled base that accepts a C-stand riser column. We do not have a table mount or other mount designed to hold the C-stand Riser Column. If you are looking for a light stand that may be small enough to work on a table, the Impact LS-K4 Micro Kit Stand - 48", B&H # IMLSK4, has a 13-inch footprint and supports 4 lbs, while the Matthews Century C Stand with Mini Base, Black - 5.25' (1.6m), B&H # MALSC20MBB, has a 17" base and supports up to 15 lbs.

Q: 9. This description is confusing. Exactly how high will this light stand go? Is it two sections or 3?

A: Minimum height is more like 21-22" + the height of your base.

Q: 10. Would this fit with a Kupo runway base stand? Also what would the minimum vs maximum height be when paired with the base?

A: This will fit a runway base. The base would add 10.2". The riser can go from 20" to 4.5'.