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HK416 D14.5

Heckler & Koch · Carbine

HK416 D14.5

Gas operated short stroke · 5.56x45mm NATO · introduced 2004

Also known as HK416 D14.5RS, HK416A5, M27 IAR

About the HK416 D14.5

The HK416 D14.5 is a select-fire carbine chambered in 5.56x45mm NATO, produced by Heckler & Koch GmbH since 2004. This German-manufactured firearm reflects the engineering traditions and quality standards of its country of origin, designed to meet the demands of both civilian and professional users in a competitive global marketplace. Featuring a 30-round magazine capacity, this carbine offers generous firepower for duty use and home defense. The 14.5-inch barrel maximizes accuracy potential and ballistic performance, making this an excellent choice for target shooting, competition, or field use. At 3490g (123.1 oz), this is a substantial firearm whose weight contributes to reduced felt recoil and enhanced stability during precision shooting. The aluminum alloy frame achieves a notable weight reduction compared to all-steel construction while maintaining the structural rigidity required for safe, reliable operation. This firearm represents its manufacturer's commitment to delivering a well-engineered, reliable product that serves the needs of discerning shooters seeking quality, accuracy, and dependable performance from a proven platform.

The HK416 gained worldwide fame when a DEVGRU operator reportedly used one to kill Osama bin Laden during Operation Neptune Spear on May 2, 2011. The rifle was developed in close collaboration with U.S. Army Delta Force operators who wanted a more reliable alternative to the M4 carbine.

HK416 D14.5 specifications

General

Type
Carbine
Action
Gas operated short stroke
Firing mechanism
Hammer-fired
Trigger
Single stage
Trigger pull
3.5 kg (7.6 lb)
Calibres
5.56x45mm NATO
Magazine capacity
30 rounds
Magazine
Detachable box magazine

Dimensions

Barrel length
368 mm (14.5 in)
Overall length
900 mm (35.4 in)
Folded length
733 mm (28.9 in)
Height
236 mm (9.3 in)
Width
78 mm (3.1 in)
Weight (empty)
3.49 kg (7.69 lb)
Weight (loaded)
4.11 kg (9.06 lb)

Barrel

Rifling twist
1:7 in (178 mm)
Rifling
Right hand
Grooves
6

Materials

Barrel
Steel
Receiver / frame
Aluminum
Stock
Polymer
Finish
black

Performance

Muzzle velocity (typical)
882 m/s (2894 fps)
Muzzle energy (typical)
1556 J (1148 ft·lb)
Effective range
300 m

History

Introduced
2004
Production status
In production
Country of origin
DE

Features

  • Short stroke gas piston
  • Cold hammer forged barrel
  • Mil std 1913 rails
  • Retractable stock
  • Full auto
  • Semi auto
  • Stanag magazine compatible
  • Folding front sight
  • Adjustable rear sight

Safety

  • Ambidextrous safety selector
  • Firing pin safety

The HK416 gained international recognition when it was reportedly used by U.S. Navy SEALs during Operation Neptune Spear in 2011. The rifle has been adopted by over 20 countries and is considered one of the most reliable and accurate modern assault rifles. The cold hammer-forged barrel has a rated service life of 20,000 rounds.

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