HECKLER & KOCH (Umarex) Airsoft GBB M110 A1

Heckler & Koch HK M110 A1 — Gas-Operated Precision Rifle (Airsoft) Built for players and collectors who demand realism and pinpoint accuracy. The HK M110 A1 is a faithful full-metal replica of the US military duty rifle, engineered with premium materials and precision manufacturing for excellent field performance.

A 455 mm precision barrel with an inner diameter of 6.03 mm guides 6 mm BBs with exceptional consistency. Combined with the adjustable shoot-up, the barrel delivers repeatable groupings and controlled muzzle behaviour. The GBB system features an NPAS for on-the-fly energy regulation so you can tune performance to your needs.

The barrel is threaded M14×1 CCW for tracer units or suppressors. Controls and ergonomics mirror the real weapon: an ambidextrous fire selector (Safe / Semi-Auto), bolt catch and magazine release are fitted on both sides. The foregrip offers universal mounting options via a full-length Picatinny rail and M-LOK slots.

Out of the box the top rail includes a removable 45° offset flip-up sight for close-quarters use even when a scope is installed. The collapsible stock adjusts in five positions to suit shooter preference.

Key Features

Full-metal construction for authentic weight and feel

Gas blowback (GBB) system with NPAS energy regulation

Semi-automatic operation (true to the original M110)

455 mm precision barrel (Ø 6.03 mm) for high accuracy

M-LOK slots and Picatinny rail for accessory mounting

Ambidextrous fire selector, bolt catch and magazine release

Adjustable shoot-up for refined zeroing and trajectory control

Removable 45° offset flip-up sight for CQB capability

Threaded barrel (M14×1 CCW) for tracers/suppressors

5-position collapsible stock

The HK M110 A1 combines authenticity, modularity and precision — ideal for skirmishes where realistic handling and reliable performance matter