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Questions & Answers
How much does this mount weigh? Expert Answer

The Leapers UTG Super Slim Picatinny RMR Lower 1/3 Co-Witness Mount MT-RMR13C weighs 1.6oz.

by Hunter, Gear Expert, October 4, 2023
Will a Swampfox Kingslayer work with this? Expert Answer

Yes. The Swampfox Kingslayer uses the Trijicon RMR mounting footprint. So the Leapers UTG Super Slim Picatinny RMR Lower 1/3 Co-Witness Mount will fit your optic and provide a lower 1/3 height.

by Ethan, Gear Expert, April 5, 2022
Customer Reviews
Helpful Positive Review
Never disappointed by DoItAll, Verified Owner, November 2, 2021
Leapers UTG is just one of those cheap brands that you buy and don't expect much from but they always seem to deliver. This RMR mount is just one of many products that has gone above and beyond my expectations. I bought a cheap mini red dot with the ...
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3/3 found this helpful
Helpful Positive Review
Fits well with RMR by pabluras, Verified Owner, June 7, 2020
1/3 co-witness supports a Trijicon rmr(type 2) to align with the magpul mbus flip up sights. When the pop-up sights are down the channel through the mount is wide enough to allow a sight picture which is nice compared to some that are solid/have no c...
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3/3 found this helpful
Most Recent Reviews
nexpensive piece of kit by Justin, Verified Owner, February 1, 2025
Am impressed with the quality of This UTG mount. Can’t go wrong for the price Thanks OP!
0/1 found this helpful
Most Recent Reviews
Give it a chance by Jonny, Verified Owner, December 1, 2024
I normally keep scrolling when I see this brand, but this thing excels at the simple job it needs to do, looks better than expected, and costs about 1/5 the price of other RMR footprint mounts. It even included some pretty solid screws to mount the o...
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Most Recent Reviews
The least expensive, longest running mount you will ever buy. Sure it isn’t quick disconnect and is basic as it gets, but it does what you expect, better than you expect. Get it, Set it and forget it. It’s solid.
Most Recent Reviews
Pretty Darned Good by OhYeah, December 4, 2022
I wanted to put a Holosun 507C on my AR and was shocked at how much risers are... that is, except for this one from UTG. It fit perfectly and is reasonably lightweight. I can't see any reason to spend more.
Read All 7 Reviews
Color:
Black
Gun Make:
Universal
Gun Model:
AR-15
Co-Witness:
Lower 1/3
Red Dot Sights-Footprint:
RMR
Optic Cut:
Not Applicable
Height:
0.95 in
Condition:
New
Included Accessories:
Standard

Code: 4VH-RMT-MTRMR13C-MT-RMR13C

MPN: MT-RMR13C

UPC: 4717385553200

List: $35.53Save 32%
$23.99

Product Info for UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount

Developed to be the most suitable mount, the UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount is the best way to ensure that you have got a dependable surface on which to connect your favorite red dot sight. These Red Dot Sight Mounts from the industry experts at UTG are made using the tough and reliable resources you expect to come out of this fantastic name brand. UTG has been preparing premium quality Red Dot Sight Mounts for a number of years, and the UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount is the outcome of their determined initiatives and commitment, to making sure you are firing with some of the greatest possible red dot mounts. For an incredible way for you to make certain your red dot is connected to your firearm with a sturdy and reputable mount, discover the UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount.image

WARNING: California`s Proposition 65

Specifications for UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount:

Manufacturer: UTG
Color: Black
Finish: Matte Black Anodize
Gun Make: Universal
Gun Model: AR-15
Fabric/Material: 6061-T6 Aircraft Grade Aluminum
Co-Witness: Lower 1/3
Red Dot Sights-Footprint: RMR
Optic Cut: Not Applicable
Hand: Ambidextrous
Length: 1.78 in
Height: 0.95 in
Condition: New
Included Accessories: Standard

Features of UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount:

  • Precision CNC Machined from 6061-T6 Aircraft Grade Aluminum and Finished in a Matte Black Anodize
  • Utilizes Locking Torx Screws and Square-shaped Integral Recoil Stops for a Secure Zero Hold
  • Significant Lightening Cuts Reduce Overall Weight and Bulk
  • Includes RMR Mounting Screws and Installation Tools for a Simple and Friendly Installation
  • 0.95in Saddle Height Position

Package Contents:

  • UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount

UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount Orderable Models

List of Orderable Models

  • UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount, RMR, Black, MT-RMR13C , MPN: MT-RMR13C , UPC: 4717385553200 , Code: 4VH-RMT-MTRMR13C-MT-RMR13C

UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount Unavailable & Discontinued Models

List of Unorderable Models

  • USED UTG Lower 1/3 Co-Witness Picatinny Red Dot Sight Mount, RMR, Black, MT-RMR13C , MPN: MT-RMR13C-EDEMO , Code: 4VH-RMT-MTRMR13C-EDEMO-IN-C
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Last updated 2026-10-22 UTC.