The H&K HK45 Metal Version GBB is a full-metal gas blowback pistol replicating the real-steel HK45 platform with exceptional realism and performance. Built around a die-cast zinc-alloy frame and slide with matte black finish, this GBB pistol offers authentic weight and balance. The precision-rifled 4.5″ (114 mm) steel inner barrel paired with an adjustable hop-up unit delivers consistent accuracy of around 310–330 FPS with 0.20 g BBs. Powered by green gas or propane, the blowback action cycles a steel slide that reciprocates with a satisfying, solid recoil impulse.

The HK45’s ergonomic polymer grip panels feature an interchangeable backstrap system to accommodate various hand sizes. Textured front and back straps ensure a secure hold under rapid-fire conditions. Ambidextrous controls include a reversible magazine release button and slide lock/release lever. The three-dot fixed iron sights—front fiber-optic insert and rear notch—allow quick target acquisition. A 20 mm Picatinny rail under the dust cover supports tactical accessories such as lights or lasers.

Feeding from a 15-round mid-cap magazine with integrated gas reservoir, reloading is swift and reliable. The magazine’s high-tension follower ensures smooth BB advancement, and a built-in gas adjustment screw lets you fine-tune muzzle velocity to suit field limits. The manual safety lever engages on the left frame, and a functional hammer block prevents accidental discharge unless the trigger is fully depressed. With an overall length of 210 mm and weight of approximately 950 g (unloaded), the HK45 Metal Version GBB balances heft for stability with a compact profile for handling.

Whether for competitive shooting, tactical training, or collecting, the H&K HK45 Metal Version GBB delivers a premium blowback experience with robust construction and realistic features.

Technical Specifications

• Type: Gas Blowback Pistol (GBB), Full-Metal Construction
• Caliber: 6 mm BBs, uses green gas/propane
• Barrel: Rifled steel inner barrel, 114 mm (4.5″)
• Velocity: ≈310–330 FPS with 0.20 g BBs (adjustable via gas screw)
• Hop-Up: Adjustable rotary hop-up unit
• Magazine Capacity: 15 rounds (mid-cap), integrated gas reservoir
• Slide & Frame: Die-cast zinc-alloy, matte black finish
• Grip: Ergonomic polymer panels with interchangeable backstraps (small/medium/large)
• Sights: Front fiber-optic dot, rear fixed notch (three-dot system)
• Controls: Ambidextrous reversible magazine release, slide catch/release lever
• Rail: 20 mm Picatinny under dust cover for lights/lasers
• Safety: Manual frame-mounted safety; functional hammer block
• Length: 210 mm overall
• Weight: ≈950 g (empty)

Key Advantages

• Full-metal slide and frame provide realistic weight and durability
• Adjustable hop-up and rifled barrel ensure precise shot placement
• Ergonomic grip with interchangeable backstraps accommodates various hand sizes
• Ambidextrous controls for versatile handling
• Fiber-optic front sight and fixed rear notch for rapid target alignment
• 20 mm rail for mounting tactical accessories
• Functional hammer block and manual safety for secure handling
• Reliable 15-round mid-cap magazine with gas adjustment screw