Gun Review: Sig P320 X5 Legion

The Sig Sauer p320 X5 Legion has been on the market for a little while now. So I wanted to bring you a review after shooting more than 30,000 rounds through mine over a year of competing in 3-gun and USPSA. I chose this platform for its ergonomics, weight, and magazine capacity. With its competition-based design and upgrades from Grayguns, this pistol is pretty sweet. 

Right out of the box the X5 Legion can be a workhorse. It comes with many features that aid the competitive shooter but would be equally helpful for those looking to pick up a X5 for home defense as well. With a five-inch barrel the gun is plenty accurate for both. Let’s check out how this gun is ready to rock out of the box. 

Let’s first talk about the tungsten infused grip module. Infusing the grip module with tungsten brings the X5 Legion to 43.5 ounces. That is heavy for a striker-fired pistol! But the weight helps tremendously with recoil reduction and transitions. This gives it the weight of a metal gun – such as a 1911 – with the ergonomics of a striker-fired pistol. The tungsten grip is a great reason to get the X5 Legion. 

Next up, the flared magwell is huge in helping with reloads! The magwell creates a funnel that simply sucks in magazines. Sig also added an extended mag release for this gun which makes it that much to drop the slide. 

Another big bonus is capacity, the X5 comes with either 17 or 21-round magazines. If you opt for the 21-round magazines, there are extended base plates to bring the total round count to 23. This may not sound like a huge benefit, but in competition that is the difference of having to reload one target less.  The 21-round magazines also make reloading with the flared magwell easier as the 17 rounder will sit completely flush. 

One of the final big upgrades for the X5 Legion is the slide allows you to directly mount one of the most popular optics: the Sig Sauer Romeo 1 Pro. Direct mounting is a benefit because it negates the risks that come with mounting plates such as cracking or coming loose. You can also check out our article on best optics of 2020, where I reviewed the four optics with the X5 Legion.