Description
There's a reason the AXG Legion gets so much attention at the counter. Pick one up and the first thing you notice is the weight. The all-metal AXG grip module gives this P320 the heft and balance of a classic alloy-framed pistol, and that mass does real work downrange. Combine it with SIG's two-port slide-integrated expansion chamber, which vents gas to cut felt recoil by up to 25 percent, and you have a 9mm that stays remarkably flat through fast strings. This RX version sweetens the deal with a ROMEO-X SL reflex sight mounted from the factory, so you're dialed in for red dot shooting the moment you leave the shop.
What Sets the P320 AXG Legion Apart
The details here are what you'd expect from the Legion line. Custom Hogue G10 grip panels give your hands real purchase without chewing them up, and the extended magwell funnels reloads home in a hurry. The XSeries flat skeletonized trigger breaks clean and keeps your finger placement consistent, while aggressive front and rear serrations make slide work easy even with sweaty hands. XRAY3 day/night sights back up the optic, and the whole package wears that unmistakable Legion Gray Cerakote finish over a stainless steel slide. A full-length M1913 rail up front handles your light or laser of choice.
Living With the AXG Legion RX
At 3.9 inches of barrel inside a full-size XSeries footprint, this pistol splits the difference nicely. It's compact enough to handle quickly but carries enough sight radius and grip real estate to shoot like a bigger gun. SIG ships it with three 10-round steel magazines, so you're not hunting for spares on day one. Whether you're running drills at the range, working toward a match, or just want a 9mm that rewards good fundamentals, this one earns its spot in the Legion lineup. Metal frame feel, modern optic, softened recoil. That's a tough combination to argue with.
Key Specifications
- Manufacturer: SIG SAUER
- Model: P320 AXG Legion RX
- Manufacturer Part Number: 320AXGF-9-LEGION-RXSL-10
- UPC: 798681720200
- Caliber: 9mm Luger
- Action: Striker-Fired Semi-Auto
- Capacity: 10+1
- Barrel Length: 3.9 in
- Barrel Material: Carbon Steel
- Overall Length: 8.2 in
- Width: 1.6 in
- Sight Radius: 5.9 in
- Optic: ROMEO-X SL Reflex Sight (SIG-LOC PRO mount)
- Iron Sights: XRAY3 Day/Night Sights
- Grip Module: Full-Size AXG Alloy with Hogue G10 Grips
- Finish: Legion Gray Cerakote
What’s Included
- SIG SAUER P320 AXG Legion pistol
- Factory-mounted ROMEO-X SL reflex sight
- Three 10-round steel magazines
- Owner's manual
- Cable lock
- Factory case
Frequently Asked Questions
Does the P320 AXG Legion RX come with a red dot already installed?
Yes, this RX configuration ships with SIG's ROMEO-X SL reflex sight mounted from the factory using the SIG-LOC PRO interface. That means no shopping for plates or worrying about footprint compatibility. The XRAY3 day/night sights are there as a backup, so you're covered in any lighting.
How does the recoil reduction on the AXG Legion actually work?
The slide has a two-port integrated expansion chamber that vents gas upward before the bullet leaves the barrel, which counters muzzle rise. SIG rates it at up to 25 percent recoil reduction. Stack that on top of the heavier all-metal AXG grip module and the gun stays noticeably flatter during rapid fire than a standard polymer-framed P320.
How many magazines are included with this model?
SIG ships this version with three 10-round steel magazines, which is a nice touch since a lot of pistols only include two. They feed reliably and drop free cleanly with the extended magwell guiding reloads. Extra factory mags are widely available if you want more for range days.
Is the P320 AXG Legion too heavy for everyday carry?
It runs about 36 ounces with a magazine, so it's heavier than a polymer P320 by a good margin. Plenty of folks do carry it with a quality belt and holster, but it really shines as a range, competition, and duty-style pistol. That extra weight is exactly what makes it so soft-shooting and quick on follow-up shots.




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