Tokyo Marui Hi-CAPA 5.1 GBB Airsoft Pistol

Tokyo Marui Hi-CAPA 5.1 GBB Airsoft Pistol

The Tokyo Marui Hi-CAPA 5.1 GBB Airsoft Pistol is, quite frankly, a legend. If you're into airsoft in any serious way, you've heard of it—and there's a good chance you've either owned one or shot one. This is the platform that dominates competition circuits, the base gun for custom race builds, and one of the most reliable airsoft pistols straight out of the box. It’s no exaggeration to say the Hi-Capa 5.1 sets the gold standard for gas blowback pistols.

This Government-style model combines a robust metal chassis with a polymer grip, creating a lightweight yet durable frame that handles beautifully. The square-profile slide is designed to replicate .45ACP custom pistols used by elite units, and the attention to detail is evident. Tokyo Marui even included chrome accents on the outer barrel and hammer, giving it that clean, race-gun look without overdoing it.

One of the standout features is the adjustable hop-up system. Hidden under the slide, it allows for fine-tuned control over your BB trajectory. Whether you're lobbing shots across a woodland skirmish or pinging targets at close range in CQB, this pistol consistently delivers accuracy. Combine that with a 112mm inner barrel and you’ve got a seriously tight-shooting airsoft handgun.

Handling is a dream. The grip angle feels natural, the trigger break is smooth, and the ambidextrous thumb safety is intuitive and accessible from both sides. The slide cycles cleanly thanks to the ABS construction, which not only keeps it lightweight but also ensures optimal gas efficiency—something Tokyo Marui is known for. Recoil is crisp and snappy, with each shot producing a satisfying blowback kick that's just plain addictive.

On the underside, you’ll find a 20mm Picatinny rail integrated into the frame. This allows for flashlights or laser modules to be mounted with ease—ideal for tactical players who want a sidearm that's ready for any situation. If you prefer a cleaner, competition-style setup, it’s just as slick without attachments.

The 31-round magazine is solidly built and holds gas efficiently. It’s more than enough for most pistol engagements, but if you’re feeling spicy, Marui’s 50-round extended mags are fully compatible. In testing, we managed three full mags worth of BBs from a single gas fill using 134a gas at room temperature—a testament to just how efficient this airsoft pistol is.

The Hi-CAPA 5.1 isn’t just reliable—it’s endlessly customisable. From precision inner barrels to CNC slides, upgraded triggers, nozzles, and beyond, there's an entire ecosystem of aftermarket parts available. That’s why it's the top pick for competitive shooters and modders alike. You can make it your own, or leave it stock and still run rings around most other sidearms on the field.

Bottom line? This airsoft pistol is the benchmark. Whether you're running it as your main sidearm or building it into a race gun masterpiece, the Tokyo Marui Hi-CAPA 5.1 is everything you'd expect—and then some.

Highlights

• Tokyo Marui’s most popular gas blowback pistol
• Fully adjustable hop-up for fine-tuned accuracy
• 31-round magazine with great gas efficiency
• ABS slide and metal internal frame for reliability
• Chrome-plated barrel and hammer accents
• Ambidextrous thumb safety for left or right-handed use
• Picatinny under rail for flashlight or laser attachments
• Snappy recoil with smooth slide cycle

What's Included

• Tokyo Marui Hi-CAPA 5.1 GBB Airsoft Pistol
• 31-round gas magazine
• Protective cap
• Instruction manual and safety precautions
• Cleaning rod
• 100x 0.20g test BBs

Technical Specifications

• Length: 222mm
• Inner Barrel Length: 112mm
• Inner Barrel Diameter: 6.05mm
• Weight: 894g (with empty magazine)
• Magazine Capacity: 31 rounds
• Power Source: Gas
• Fire Mode: Semi-auto only
• Hop-Up: Adjustable
• Build Material: ABS with metal internals