PX4 storm double/single-action semiauto: absolute durability, reliability, ergonomics and interchangeability of parts have made it the go-to choice for shooters around the world. Features: 3-dot sight system: the 3-dot sight system is adjustable for windage and makes target acquisition easy under most light conditions Ambidextrous safety - easily train or shoot with either hand Automatic firing pin block: the PX4 gives you an extra level of safety while in the holster or not in use-the firing pin is blocked automatically to prevent any type of accidental firing Commander-style hammer - besides being a custom-looking touch, the commander-style hammer is lighter; hammer-fall during firing is therefore crisper and will not disrupt your aim Drop-free magazine - tactical magazine-exchanges on the PX4 are easy and lightning-fast, when you operate the magazine-release, the magazine falls free and does not require the use of the off-hand Interchangeable backstraps - the interchangeable backstraps will make the PX4 grip fit ergonomically most hand-sizes and shooting styles Picatinny rail - the built-in Picatinny rail makes it easy to complement the PX4 with a variety of tactical accessories such as lighting devices, with no gunsmithing required Reversible magazine release: most controls on the PX4 are reversible or ambidextrous, making it possible to train or shoot right- or left-handed Ultra-durable, ultra-safe for concealed carry and home defense Snag-free, modular design, loaded with features Reliable, pleasant to shoot and easy to maintain