Umarex H&K G3A3

Gas Blowback Rifle - Umarex

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  • Regular price £529.99
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The H&K G3 which was developed in the 1950s, chambered in 7.62x51mm NATO and used throughout the world with many military forces, it is still used by the German military as their designated marksman rifle. The rifle gained popularity as being an extremely efficient, accurate and durable firearm and was loved by many military forces globally.

This Umarex H&K G3A3 GBBR is a stunning replica of the real H&K G3. Constructed from stamped steel and polymer, the rifle is full size and weighs in at 3.56 kg making it a beast of an airsoft gun to handle! This operates like the real gun, the magazine is inserted and charging handle is racked to load your first round (slapping the charging handle is optional) and upon firing the airsoft gun delivers a hefty kick making this an extremely realistic airsoft gun to handle and fire. The G3 has sling point attachments, semi and full auto fire modes, adjustable hop-up, adjustable iron sights and also a ambidextrous magazine release. Overall, the gun is an exact copy of the real G3 and is an outstanding replica to use in airsoft games and adds a whole new level of realism!

If you are looking for an iconic gas blowback rifle that can either be used as a DMR or as your primary assault rifle then the Umarex H&K G3 GBBR is the airsoft gun for you!


  • Full scale 1:1 replica – same weight and size
  • Fully licensed by Heckler & Koch
  • Constructed from stamped steel and polymer
  • Powerful blowback action on firing
  • Legendary H&K charging handle
  • Functional charging handle for loading the airsoft rifle
  • Adjustable rear iron sight and fixed front sight
  • Realistic disassembly
  • Sling attachment points
  • Semi-automatic and full-auto fire modes
  • Adjustable hop-up
  • Ambidextrous magazine release
  • Textured handguard for better grip
  • Unique stamped serial number on receiver 
  • Gas efficient metal 20 round magazine
  • High accuracy and range when shooting


Included with the gun:

  • 1 x 20 round magazine
  • 1 x Manual



Umarex/WE Airsoft Europe

Model Name

H&K G3 A3 (2.6395X)


6.0 mm

Weight, Scale, Length

3.56 kg – 1:1 – 1025 mm

Barrel Length

455 mm

Magazine Capacity

20 Rounds

Powered By

Green Gas

Recommended Energy Source

Nuprol 2.0 Gas


Metal and Polymer

Safety and Fire Modes

Safe, semi-automatic and fully automatic

Adjustable Hop-Up


Hop-Up Adjustment Location

Remove handguard – located on gas tube

Velocity (feet per second/FPS)

~ 325fps ± 10%, using 0.20g BB

Rate of Fire (rounds per minute)

Approx. 600