New for 2021: SIG Sauer P365X ROMEOZero

by
posted on March 28, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
sigsauer-p365romeozero.jpg

SIG Sauer Inc. introduced a new addition to P365 line of micro-compact, striker-fired handguns for 2021 with the P365X ROMEOZero. The P365 line of handguns has grown in popularity since the initial P365 release in 2019, with SIG Sauer introducing several variations to the line in terms of barrel length, magazine capacity and other additional features along the way. The new P365X ROMEOZero continues this trend by building off the strengths of the original P365 and later P365XL of the XSERIES.

The P365X ROMEOZero, like the other pistols of its line, is a polymer-frame, striker-fired semi-automatic 9 mm pistol geared specifically for concealed carry use. It has several of the attributes found on the P365XL, including the larger grip module and XSERIES trigger group. The enlarged integrated carry grip module borrowed from the P365XL design allows the P365X ROMEOZero to accept the same 12-round magazines as used in the P365XL, along with 15-round extended magazines that are sold separately. The larger grip module results in an overall height of 5.5”, which provides more area for the user’s hand to grasp.

Also found on the polymer frame is an extended beavertail to prevent the slide from biting the user's hand, along with the same rough-texture pattern on the front, back and sides of the grip as found on the rest of the P365 line. The P365X ROMEOZero has a XSERIES flat-shoe trigger with a 90-degree brake that reduces the perceived trigger pull weight. Despite having the grip module size of the P365XL, the P365X ROMEOZero uses the shorter 3.1" barrel found on the original P365.

The shorter barrel reduces the overall length to 6" versus the longer P365XL, which increases comfort when used for concealed carry. The slide features XSERIES markings along with serrations located on the sides of the slide at the front and rear. Also included on the slide is a X-RAY3 front sight post. As the name suggests, the P365X ROMEOZero’s slide is cut for and comes with a SIG Sauer ROMEOZero 1X24 mm micro red-dot optic pre-installed from the factory.

The ROMEOZero red-dot optic uses an LED emitter powered by a single CR1632 battery, with eight manually adjusted brightness settings. It's turned on by a MOTAC motion activation system, negating the use of a manual power button before use. The body of the ROMEOZero is constructed of polymer with texturing on the sides for added grip of the slide during manipulation. At the rear of the optic is a built-in rear sight notch for use with the front sight post if needed.

The P365X ROMEOZero is 1.1” wide and weighs 18 oz. without the magazine. The addition of the 0.93” ROMEOZero optic increases the height of the P365X package to 6.43” in total and only adds 0.4 oz. to the overall weight. For more information on the P365X ROMEOZero visit sigsauer.com.          

Latest

Us Army 250 Th Part 3 1
Us Army 250 Th Part 3 1

250 Years of the U.S. Army: Bolt-Actions & Semi-Automatics on the Battlefield

In just a few decades, the U.S. Army would see itself go from a single-shot, blackpowder design in the form of the Trapdoor Springfield to a modern, semi-automatic fighting rifle in the M1 Garand.

Modernized & Economical Muzzleloaders: The CVA Optima XP & XP-SB

CVA's longest-lasting muzzleloader design, the Optima, has been updated in 2026 with "modern ergonomics and modularity."

MidwayUSA Awards $7.5 Million in Cash Grants to Support Youth Shooting Teams

MidwayUSA Foundation recently announced that it concluded its most recent grant cycle, which resulted in a total payout of more than $7.5 million to youth shooting teams and organizations nationwide.

The Constitutional Concealed Carry Reciprocity Act is on the Move

The story of American freedom, now almost 250 years on since delegates to the Second Continental Congress signed the Declaration of Independence, leads irrevocably to the Constitutional Concealed Carry Reciprocity Act.

Mixing & Matching Gun Parts: What’s The Catch?

How would one about verifying that parts from one gun would fit and function on another of the same make and model? What about aftermarket parts sold as replacement parts for hard-to-get original parts?

U.S. Army & Navy Award FN a $9.9 Million Contract for Machine Guns

FN America has been awarded a $9.9 million contract to supply the U.S. Army and U.S. Navy with FN M240B machine guns, continuing the supply of FN America’s longest-standing military weapons platform.

Interests



Get the best of American Rifleman delivered to your inbox.