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I tried to mount this on the RIA VR80. It won't fit my rail. Am I missing something? Are there multiple different picatanny rails that I'm unaware of? — 1 Answer

by Madness, from VA, United States Asked on December 6, 2019

Name Kinetic Development Group SIDELOK Mount for the COMP M4 & Patrol Rifle Optics, Model (4)
As Low As $137.99 Save Up to 16%
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Answered by Armando R., Gear Expert, from IL, United States, on February 12, 2020

This should definitely fit the top rail on the VR80. It should mount from the side of the rail and rock onto the slot from right to left. The "lever" should be in the pushed in and when it gets mounted the "lever" will come out to the locked position. Here is a good video showing a Sidelok being mounted:

https://www.youtube.com/watch?v=m5FJJ7eInRs

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Last updated 2025-11-12 UTC.