Tokyo Marui Hi-CAPA 5.1 Stainless Model GBB Airsoft Pistol

Ask any seasoned airsofter what their go-to sidearm is, and chances are high you’ll hear “Hi-Capa” thrown around. And for good reason. The Tokyo Marui Hi-CAPA 5.1 Stainless Model GBB Airsoft Pistol is a benchmark in the world of gas blowback handguns. This isn’t just another sidearm—it’s a platform that’s dominated competitive circuits and backyard skirmishes alike. With its flawless out-of-the-box performance and near-limitless upgrade potential, it's no surprise it’s the choice of elite airsoft players and weekend warriors alike.

The stainless finish on this model adds a touch of flair without being over the top. It’s sleek, clean, and gives off that “custom race gun” vibe straight from the holster. The slide, chassis, hammer, and grip safety all boast that silver sheen, contrasting nicely with the darker grip and frame for a proper two-tone aesthetic that looks as sharp as it shoots.

Under the hood, it’s all Marui magic. The 5.1 comes equipped with a variable hop-up system tucked neatly under the slide. It lets you fine-tune your trajectory to get those crisp, accurate shots dialled in just right. Whether you're plinking targets or clearing corners in a CQB room, this airsoft pistol delivers tight groupings and reliable gas efficiency—something Marui is legendary for.

Ergonomics? Nailed it. The ambidextrous thumb safety makes it comfortable for both left- and right-handed shooters, while the semi-wide design is intuitive and easy to engage under pressure. The polymer grip keeps the weight manageable, while the internal metal chassis adds durability and a balanced feel. It’s the sort of pistol that just feels right the moment it’s in your hand.

The 222mm full-length frame gives you a solid sight radius for aiming precision, with the fully adjustable rear sight allowing both vertical and horizontal tweaks. Whether you’re compensating for range or just tuning it to your preferred shooting style, this is a feature that competitive players genuinely appreciate.

Marui didn’t forget the tactical crowd either. An included Picatinny under rail lets you throw on a torch or laser for low-light engagements or just that extra bit of intimidation. It’s modular, it’s functional, and it’s ready for whatever you throw at it.

And let’s not ignore that 31-round high-capacity magazine. It holds plenty of BBs for those tense shootouts, with room to spare. Need more firepower? Grab the extended 50-round mag and you’re good to go for longer fights without needing to reload. On our test with 134a gas at room temp, we got three full mags out of a single gas fill—efficient, to say the least.

The Tokyo Marui Hi-CAPA 5.1 Stainless Model isn’t just a sidearm—it’s a full-on precision tool with showstopper looks. Whether you’re looking to build a race-ready competition pistol or just want something dead reliable and cool-looking to run on the field, this airsoft handgun ticks every box with style and performance to spare.

Highlights

• Reliable Tokyo Marui Hi-Capa platform
• Stainless two-tone finish for a custom look
• Fully adjustable rear sight for fine-tuned accuracy
• Ambidextrous thumb safety for user convenience
• Square heavy-type slide with anti-glare grooves
• Integrated Picatinny rail for tactical attachments
• High-capacity 31-round gas magazine included
• Efficient gas usage – up to 3 mags per fill on 134a

What's Included

• Tokyo Marui Hi-CAPA 5.1 Stainless GBB Airsoft Pistol
• 31-round gas magazine
• Under rail and mounting hardware
• Mounting hole processing jig
• Protective cap
• Instruction manual and safety precautions
• Cleaning rod
• 100x 0.20g BBs

Technical Specifications

• Length: 222mm
• Inner Barrel Length: 112mm
• Weight: 894g (with empty magazine)
• Magazine Capacity: 31+1 rounds
• Power Source: Gas
• Fire Mode: Semi-auto only
• Hop-Up: Adjustable
• BB Size: 6mm (recommended 0.2–0.25g)
• Build Material: ABS slide with metal internals