The GHK HK416 A5 GBBR

(Delta Force Operators Running the HK416 During Training Exercises.)

The Umarex HK416A5 GBB, manufactured by GHK, represents the current pinnacle of gas-blowback platform engineering for tactical simulation and high-intensity training. By integrating a reinforced steel bolt carrier group into the licensed Heckler & Koch architecture, this rifle bridges the gap between civilian sport shooting replicas and professional-grade training tools, delivering consistent recoil impulse and mechanical fidelity.

The United States Army's Delta Force, at the request of R&D NCO Larry Vickers, collaborated with Heckler & Koch to develop a new carbine in the 1990s for use in close quarters combat (CQC), as the current standard weapon for close quarters environments were typically submachine guns that were chambered in 9mm which was considered "too weak" and that the M4 carbine was considered too large with its 14.5 inch barrel. And so, ultimately, they came up with the HK416 platform.

The base HK416 platform is an assault rifle chambered for the 5.56x45mm NATO cartridge and is designed and manufactured by the German company Heckler & Koch. Although the design is based on the AR-15 platform (specifically the COLT M4 carbine platform, which is the standard issue rifle of the U.S. Military), it uses a proprietary short-stroke gas piston system from the Heckler & Koch G36 family of rifles. The HK416 A5 is a new and improved variant with ambidextrous controls that was first seen in the individual Carbine competition. It features a stock that is similar to that of the G28 designated marksman rifle, except slimmer and non-cheek weld adjustable. The rifle also features an improved tool-less adjustable gas regulator for suppressor usage and can accommodate barrel lengths down to 10.5" inches without modifications, as well as a redesigned lower receiver with fully ambidextrous controls, optimized magazine and ammunition compatibility, and a nifty repair kit that is housed inside the pistol grip.

Technical Specifications and Configuration:

• System: Gas Blowback (GBB) with a high-efficiency internal gas route.
• Bolt Construction: CNC-machined steel bolt carrier group for increased mass, durability, and a more pronounced recoil cycle.
• Receiver: Fully licensed HK markings with an anodized FDE (Tan) finish, matching current military-contract specifications.
• Fire Control Group: Ambidextrous selector levers, magazine release, and bolt catch, mirroring the ergonomics of the real-steel A5 variant.
• Hop-Up: Tool-less quick-adjust hop-up system located at the gas block for rapid field adjustments without disassembly.
• Buffer System: GHK-proprietary heavy-duty buffer spring and weight set optimized for stable gas pressure in varying climates.
• Magazine Compatibility: Compatible with GHK HK416/M4 series V2 gas magazines.

In the Box:

• 1x Umarex HK416A5 GBB Rifle (Tan)
• 1x 30-round GHK Gas Magazine
• 1x Speed Loader
• 1x User Manual and Technical Documentation

For the operator who demands a platform that mimics the manual of arms of an HK416A5, the GHK internal system provides a level of mechanical reliability that is difficult to replicate in standard AEG or inferior gas systems. The inclusion of the steel bolt assembly ensures that the rifle stands up to the rigors of sustained tactical drills and cold-weather operation better than alloy-bolt alternatives. By choosing this model, you are investing in a platform designed for longevity and predictable performance, making it a pragmatic choice for users who require a high-fidelity training aid that prioritizes structural integrity over aesthetic flash.

The GHK HK416A5 GBB Airsoft rifle series will be available as both a Standard Version, which is equipped with a durable zinc-alloy bolt carrier, and a Premium Version, which is equipped with a heavy-duty CNC steel bolt carrier assembly.

Check out more Airsoft Guns

Due to a distribution agreement, this products cannot be shipped to North America

Magazine Compatibility:

• GHK M4 Green Gas Magazines
• GHK M4 CO2 Magazines
• GHK M4 Green Gas GMAG Magazines
• GHK M4 CO2 GMAG Magazines
• GHK H&K Nylon Polymer Green Gas Magazines
• GHK H&K Nylon Polymer CO2 Magazines

Due to a distribution agreement, these products cannot be shipped to North America

Includes:

• x1 Umarex HK416A5 GBB Airsoft Rifle (Steel Bolt Version, by GHK) - Tan
• x1 HK416A5 Nylon Polymer Green Gas Magazine
• x1 Manual