Review: UM3 Pistol Sight Mount and Holster

UM3 Pistol Sight Mount

Have you ever wanted to mount a red-dot optic on your pistol but didn’t want to send your slide in to be milled? Well, now you can attach a red-dot with a 1913 rail mount to most pistols with a front attachment rail (a 1913 style front rail or similar), such as most Glock models, various Springfield XD models, many Smith & Wesson M&P models, as well as many others with the UM Tactical, UM3 sight mount.

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Glock Sight Comparison: Ameriglo vs Meprolight vs TruGlo TFO


I’m in the process of upgrading the sights on a few of my pistols so I figured I should get a variety of sights and do a quick once over on them all… In this round I have access to a set of Ameriglo (GL-115) sights, a set of Meprolight (ML-10224) sights and a set of TruGlo TFO (TG131GTIY) fiber optic sights; all are for standard Glock pistols (9mm, .40, etc) and are Tritium powered night sights.

It is worth noting, the Ameriglo sights are marked as Trijicon sights; from what I’ve read the metal portions of the sights are made by Ameriglo, but the Tritium inserts are designed and made by Trijicon.

Tritium (T, 3H)
Tritium is a radioactive isotope of Hydrogen that emits electrons that can cause phosphors to glow and be used as self-powered lighting devices called betalights. This is used in many things, like watches and night sights. Tritium is very expensive costing around $30,000 USD per gram.
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Lets see how they stack up…
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