Featuring 4 inch hammer forged barrel and forged slide protected with Melonite finish. Pistol is equipped with 3-dot front and rear sight. Trigger guard is enlarged for easier trigger manipulation while wearing gloves.

Other features include picatinny rail, ambidextrous magazine release, grip safety, trigger safety, firing pin safety along with striker-status indicator and loaded chamber indicator. Pistol comes with stainless steel (16+1) magazines. HS-9 4.0 is ideal all-purpose gun.