Micro-9 Under Glass
I was contacted a month ago about the new variant of the ergonomically superb Taurus GX4 11-shot 9mm pistol. About the size of the GLOCK 43 (smaller than the G43X), it’s a double-to-single stack magazine and, while very small, it’s become known as a very solid 9mm pistol.
The new gun is the GX4 T.O.R.O. – Taurus Optic Ready Option. I wasn’t surprised that Taurus made this happen; the trend to optics on service pistols has become optics on compact and micro-compact guns. How relevant is that?

Some reluctance to optics on concealment guns revolves around bulk. With the micro-pistol, the added ‘footprint’ is still smaller than the so-called compact service pistol. And, as the smaller pistols have become “a thing,” the optics designers have continually made the electro-sight smaller without compromising battery life, options and – to some extent – durability.
Our use of the mini-Taurus was documented here, here and here. That created high hopes for the latest variant.
As supplied and fitted, for my testing, the Taurus GX4 T.O.R.O. was fitted with the Holosun HS507K X2 optic. This is my first hands-on experience with Holosun optics.
When first activated, I saw the “circle around the dot” reticle – a 32-MOA circle with a 2-MOA centered dot. I figured that would work for me. The gun was about the same as the Taurus GX4 that arrived earlier in the year, except it was supplied with an eleven round magazine and a thirteen-round magazine. It also came with the “Taurus tool” keychain (which didn’t accompany the first gun) and other odds and ends. It was in the OD Green plastic box, like the original.
As with the original GX4, I installed the larger palm-swell backstrap. I found it made the nicely sculpted frame a better fit for me.

I took the new gun to the range the month before the public release. Beginning with the long magazine — I find the GX4 to be a bit short for precision shooting – and using Hornady 124 grain XTP +P ammo, I sought to rough-in a zero on the optic. Shooting from a seated rest at fifteen yards, I found the group was exactly two inches left of point-of-aim of the optic. I cranked the 1MOA adjustment right and tried with another five rounds on the same target. The group was nicely centered. Without my induced low flier, four of the bullets hit into 1 3/8”. With the flyer, it was a three-inch group, which made me sad. But the trigger is different from other guns – I can’t really explain how – and I hadn’t been to a range in around five weeks. Read more












