The Ermox X-Defense P1 M4-style semi-automatic shotgun features an 18.5 inch barrel threaded for interchangeable choke tubes, which are included in the box. At the muzzle, the barrel accepts different chokes to tailor patterns for various 12 gauge loads. A red fiber optic front sight, protected by a metal housing, sits on top of the barrel for quick sight acquisition. Beneath the barrel is a 5+1 capacity magazine tube. At the front of the magazine tube is a large sling mount that swivels slightly, allowing the sling to be run to either the left or right side for different carry preferences.
This shotgun uses an auto-regulating gas operating system, often referred to as an ARGO-style system. That design helps the gun cycle a range of 12 gauge loads without manual adjustment. The handguard is molded polymer with ribbed texturing to improve grip during recoil and rapid strings of fire. Directly behind the handguard is a metal Picatinny rail section on the receiver, providing a mounting point for additional sights or optics if the shooter prefers something other than the factory iron sights. The overall layout is consistent with an M4-type tactical shotgun configuration.
Behind the receiver rail is the rear sight, which is adjustable and made from polymer. Together with the red fiber optic front sight, it provides a clear sight picture for 12 gauge use. On the right side of the Ermox X-Defense P1 is a cylindrical charging handle, contoured on both sides to make it easy to run with a single finger or a pinch grip. The bolt release is located at the ejection port. It is raised from the receiver with vertical texturing machined into the surface, giving a positive feel when releasing the bolt to chamber a round.
On the underside, the loading port features a silver-colored loading tongue that contrasts with the rest of the shotgun, making the port visually distinct when topping off the 5+1 magazine. The trigger guard is polymer and oval shaped, while the trigger itself is metal. The trigger pull has very little take-up, a defined wall, and a crisp break, followed by a tactile, audible reset. This predictable trigger behavior supports controlled, repeatable shots with 12 gauge loads. The safety is metal and shaped so that one side appears triangular and the opposite side circular, allowing the shooter to determine the safety position by feel rather than relying solely on visual confirmation.
The pistol grip is rubber over a polymer internal structure, providing both rigidity and a more comfortable gripping surface. Horizontal grooves along the grip improve traction, and a small tongue at the bottom helps keep the hand in place, even when sweating or firing multiple rounds quickly. The stock is relatively thin and light, and it includes a three-position adjustable cheek rest. Adjustment is done by pressing a button and moving the cheek piece up or down to align the shooter’s eye with the sights or any optic mounted on the Picatinny rail. The rear of the stock includes a clip-style sling mount as well as a more traditional sling attachment point, offering flexibility in how the shotgun is carried.
At the rear, the Ermox X-Defense P1 M4-type shotgun is fitted with a large rubber butt pad. This pad is designed to soften the felt recoil of 12 gauge shells, making extended shooting sessions more manageable. Combined with the gas piston operating system and ergonomic grip, the butt pad contributes to a more controlled shooting experience when running the 5+1 capacity. The video concludes by noting that the shotgun offers M4-style features and styling at a relatively modest price point. Viewers are encouraged to share their experiences with the Ermox X-Defense P1 M4 in the review section for others considering this platform.
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