The Zev Technologies Z365 Octane is a micro compact semi automatic pistol with a 3.1" barrel. This particular model comes standard with the Zev Z365 Octane slide in titanium gray. It features the RMSC optic cut which is compatible with the Shield RMSc, SIG Romeo Zero and Holosun HS407K all of which are sold separately. Additionally take note of the Zev Z365 Pro barrel which features a black DLC finish. Fiber Optic combat sight, a cover plate and a standard P365 standard curved trigger are all additional standard features of this particular pistol. Get the best of SIG Sauer and Zev Technologies with this pistol.