Optimum Arms inertia operated shotguns offer perfectly balanced the simplest, fastest, cleanest, strongest, and the most reliable operating system.

Inertia operated shotguns, using the gun’s recoil to operate, are designed for shooters who demand consistent performance for high volume shooting.

Optimum Arms inertia operated shotguns combine engineering and superior material composition to provide the reliable operation in the toughest environments.

Inertia operated shotgun activates the energy of the recoiling gun to its bolt. As a result of no powder getting re-routed into the gun, the great outcome is a gun with quick and easy maintenance, and cleaner running even when used in high-volume shooting.

Flawlessly presented rubber recoil pad, fiber optic sight and shim kits, Turkish walnut checkering on OP 200, OP 300, OP 350, OP400, backed by a warranty.