3-Dot sights Striker fired trigger system w/enhanced HK light pull trigger (4.50 to 5.62 lb. pull) Large recurved trigger guard Ambidextrous controls Paddle style mag. release Captive flat recoil spring HK cold hammer forged cannon-grade steel barrel w/polygonal bore profile 6-grooves Black carbon-nitride corrosion-resistant high-quality steel slide w/front & rear cocking serrations Patented slide charging supports for effortless rearward pull Ergonomic polymer frame w/high grip saddle plus (3) interchangeable backstraps & (6) grip side panels Extended Picatinny M1913 rail (4 notches) Lanyard loop attachment point on backstrap Safeties: Firing pin block Trigger latch safety Disassembly safety Loaded chamber indicator Tool-less field strip & easy disassembly via takedown lever without need to pull trigger prior to removing slide Low maintenance design Ultra-reliable operation Extensively tested Engineered for long service life HK Limited Lifetime Warranty Includes (2) 15-round steel P30-type mags. w/protective polymer floorplates OAL: 7.34" Width: 1.32" Ht.: 5.45" Wt.: apx. 27 oz.