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red dot to Base compatibilty

Below, you will find specific red dots paired with the correct base.  All of the MaddMacs bases are red dot specific, but many red dots use the same footprint, hole spacing and pin alignment. 
Some have the same footprint but use less alignment pins.  For example, the HoloSun® 407K/507K has the exact footprint of the Shield® RMS but only requires the two front pins.  While some have the same hole spacing and pin alignment but have different footprints.  For example, the DP Pro and Shield® RMS have the exact hole spacing and pin alignment but the DP Pro is much longer than the Shield® RMS.
***All of the MaddMacs Center Bases are designed for any Ruger­® MK Series except for the Ruger® MKIV 22/45™ Tactical Silencer Shop Exclusive (Model #40179).  The rail hole spacing differs from the standard MK Series.  If you order a base expecting it to fit your Silencer Shop Edition upper and it does not fit because you didn't realize the hole spacing was different, there will be no refunds.***

MaddMacs Center Base 2.0 & MaddMacs DT Base 2.0
Burris­® FastFire™ II & III
Vortex® Venom™
MaddMacs RMR Center Base 2.0 & MaddMacs RMR DT Base 2.0
Trijicon® RMR & SRO
HoloSun® HS407C, HS 507C & HS508T
Swampfox Kingslayer

MaddMacs DP Pro Center Base 2.0 & MaddMacs DP Pro DT Base 2.0
Leupold® DeltaPoint Pro

MaddMacs Shield Center Base 2.0 & MaddMacs Shield DT Base 2.0
Shield® RMS, RMSc, RMSw & SMS
HoloSun® HS407K & HS507K ***Choose 407K in the drop down menu.  The standard RMS base will NOT work with the 407K/507K***
Sig® Romeo0 ***Choose RMS-Compact in the drop down menu after clicking Buy Now***
Riton X3 Tactix MPRD *** Choose RMS-Compact in the drop down menu after clicking Buy Now***

MaddMacs Sig Romeo Center Base 2.0 & MaddMacs Sig Romeo DT Base 2.0
All of the Romeo red dots use different footprints or pin spacing.  There are 3 options to choose after clicking Buy Now. 
1. Sig® Romeo1
2. Sig® Romeo1 Pro
3. Sig® Romeo3 XL


All other bases not listed here are red dot specific.  For example, if you have a Vortex® Viper, you will want to go to Vortex Venom/Viper/Razor™ page and look for the base designed for the Viper.  Yes, the Viper will fit the base designed for the Venom, but the footprint is totally different so it will not be flush on all four sides of the base.
If you don't see your red dot listed here or can't find a base on this website specifically designed for the red dot you have, you may be able to use a MaddMacs base that has the same hole spacing and pin alignment.  Click on this link to find your red dot - Footprints/Mounting Standards on Red Dot Sights

For Canadian residents wanting to purchase, contact Aztech Armory at info@aztecharmory.com
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