Heckler & Koch HK416 5.56mm Full Auto Rifle

The Heckler & Koch HK416 5.56mm Select-Fire Rifle was developed for U.S. special operations forces as a major product improvement of M4/M16-type carbines and rifles. Using the HK-proprietary gas piston system found on the G36, the HK416 does not introduce propellant gases and carbon fouling back into the weapon’s interior, making it the most reliable of any M4/M16 type weapon.

The HK416 has been combat-proven in Southwest Asia and has also gained worldwide attention of military, law enforcement, and security users. In April 2007, the HK416 was selected as the new Norwegian Army rifle. The 10.4 inch barrel model is the shortest, most compact variant and is widely used by special operations, law enforcement, and military units worldwide.

Upgrades were made to the internal operating system and various component parts, improving reliability in best and worse case scenarios, with all types of ammunition, with all barrel lengths, and with and without sound suppressors attached.

Choice of handguards include the HK free-floating 4-quadrant rail system (FFRS). The FFRS is designed by HK and allow all current accessories, sights, lights, and aimers used on M4/M16-type weapons to be fitted to the HK416. These HK rail systems can be installed and removed. Both are free-floating and do not touch the barrel or negatively affect the weapon’s accuracy.

The HK-proprietary gas system uses a piston driven operating rod to control the function of the bolt, preventing propellant gases and the associated carbon fouling from entering the weapon’s interior.

This increases the reliability of the weapon and extends the interval between stoppages. It also reduces operator cleaning time, heat transfer to the bolt and bolt carrier, and wear and tear on critical components.

The HK416 uses a barrel produced by Heckler & Koch’s famous cold hammer forging process; further improving reliability, service life, and operator safety during obstructed bore occurrences or in extreme extended firing sessions.

The highest quality steel is used in this unique manufacturing process producing a barrel that provides superior accuracy for more than 20,000 rounds with minimal degradation of accuracy and muzzle velocity. HK416 variants are available with multiple barrel lengths (see product list).

In addition to the improvements in the baseline weapon, HK has produced corrosion resistant steel magazines as well as a proprietary buffer system to further enhance functional reliability

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