The Heckler and Koch HK416 is a select-fire rifle chambered in 5.56 NATO. Founded in 1949, HK is a German defense manufacturing company that designs and produces small arms. The HK416 was released around 2005 as a more functionally reliable replacement for the ubiquitous M4 and M16.
The HK416 uses a proprietary gas-piston operating system where gas released from the firing of an individual round cycles through a tub that pushes against a piston and then the piston drives the bolt rearward. The bolt ejects the spent casing and reloads a fresh cartridge. This system tends to require less maintenance because the gas doesn’t expel inside the chamber.
Features include a cold hammer forged, meaning a machine carefully carved grooves in the bore. It is known for increased accuracy and durability. The HK416 also uses corrosion resistant magazine. It has a retractable stock, pistol grip, and folding front sight. It also has a Picatinny rails for easy mounting of optics and accessories.
The HK416 is available in four barrel lengths: 10.4″, 14.5″, 16.5″ or 19.9″.
|Features:||Available as complete carbine or rifle or as a "drop-in' HK416 upper receiver module for use on the lower receivers of existing M4/M16 types weapons<br />Picatinny rails|
|Weight:||7.21 pounds<br />8.24 pounds<br />8.4 pounds<br />9.05 pounds|
|Barrel Length:||10.39"<br />14.49"<br />16.5"<br />19.88"|
|Length of Pull:||Adjustable"|
|Overall Length:||27 to 31.38"<br />31.65 to 35.43"<br />33.66 to 37.44"<br />37.05 to 40.83"|
|Capacity:||10<br />20<br />30|
|Features:||Gas piston operating system; HK free floating rail system (FFRS) handguard; fully ambidextrous controls and cold hammer-forged German-made barrel|
|Scope:||Four Picatinny rails|
|Weight:||6.81 (loaded) pounds|