HK

Caliber: .40 S&W - Operating principle: Recoil operated - Action Type: Browning type modified linkless locking system - Trigger System: Striker fired - Magazine Capacity: 10 round - Length (overall): 7.34 in - Barrel length: 4.09 in - Width: 1.32 in - Height: 5.45 in - Weight (empty magazine): 28.93 ounces - Trigger pull: 5.4 pounds - Trigger travel: .24 in - Return travel: .12 in - Barrel profile: polygonal profile 6 grooves (right-hand twist 1 in 9.8 in) - Sights: three dot non-radioactive luminous - Safety: firing pin block trigger latch safety