Tokyo Marui Hi-Capa 5.1 Black Gas Blowback Airsoft Pistol
The Tokyo Marui Hi-Capa 5.1 Black is a proven gas blowback airsoft pistol known for reliable performance, an adjustable hop-up, crisp blowback action, and extensive upgrade potential. It is an excellent stock sidearm or foundation for a custom Hi-Capa build.
Product Overview
Built around Tokyo Marui’s benchmark Hi-Capa platform, the 5.1 Government Model combines a lightweight polymer slide and grip with a metal chassis for balanced handling. Its 112 mm inner barrel and adjustable hop-up support consistent accuracy with 6mm BBs, while the double-column magazine provides a 31-round capacity. Adjustable rear sights, ambidextrous thumb safeties, and fast-cycling slide suit skirmishes, speedsoft, and target shooting.
Features and Benefits
- Gas blowback delivers responsive slide movement
- Adjustable hop-up helps tune BB flight
- 31-round magazine reduces reload frequency
- Fully adjustable rear sight supports precise aiming
- Ambidextrous safeties accommodate either hand
- Included 20 mm under-rail accepts compatible accessories
- TM-spec platform supports extensive Hi-Capa upgrades
Specifications
- Manufacturer: Tokyo Marui
- Model: Hi-Capa 5.1 Government Model
- Color: Black
- System: Gas blowback, semi-automatic
- Overall Length: 222 mm
- Inner Barrel Length: 112 mm
- Weight: 894 g with empty magazine
- Ammunition: 6mm BBs
- Magazine Capacity: 31 rounds
- Hop-Up: Adjustable
Compatibility
Compatible with Tokyo Marui Hi-Capa magazines and designed as the standard base for many TM-spec Hi-Capa 5.1 upgrades. Aftermarket fitment can vary; minor fitting may be required.
What’s Included
Hi-Capa 5.1 pistol, 31-round magazine, 20 mm under-rail picatinny for flashlights and lasers, cleaning rod, manual, and sample BBs.
Installation
The pistol is ready to use after proper gas and BB loading. Installing the included under-rail requires drilling the marked frame holes; follow the supplied instructions or use a qualified airsoft technician.
Tokyo Marui Hi-Capa 5.1 Black - General Information
| Specification | Value |
|---|---|
| Product Name | Tokyo Marui Hi-Capa 5.1 Black |
| Product Type | Gas Blowback Airsoft Pistol |
| Manufacturer | Tokyo Marui |
| Model / Platform | Hi-Capa 5.1 Government / TM-Spec Hi-Capa |
| Magazine Capacity | 31 rounds |
| Hop-Up System | Adjustable wheel |
| Overall Length | 222mm |
| Inner Barrel Length | 112mm |
| Weight | 894g / 1.97lb (with empty magazine) |
Common Product Questions
Find quick answers about our airsoft products, shipping and policies.
Will this part fit my platform?
Compatibility is product-specific. Check the brand, model, size, and platform named in the product description, such as Tokyo Marui Hi-Capa 4.3 or 5.1, AAP-01, Umarex/VFC Glock, or a particular AEG gearbox type.
Similar-looking parts are not always interchangeable, so contact our team with your exact model if you are unsure.
Do I need tools or gunsmithing?
That depends on the upgrade. Simple external parts may be straightforward, but internal upgrades can require disassembly, reassembly, adjustment and testing.
If you are not comfortable working inside your airsoft gun, our team offers professional tech and custom-build services.
Can LA Airsoft install this part for me?
Yes. We can build and upgrade Hi-Capas, AAP platforms, and rifles. Choose your base gun and parts, then add the appropriate tech service.
The current custom-build service states that builds are normally completed in approximately 3 to 5 days, with the team reviewing the selected parts for compatibility.
How should I maintain this product?
Regular maintenance helps preserve performance and reliability. Keep the product clean, follow the manufacturer’s lubrication instructions, and properly manage batteries, gas systems, and internal components. More advanced repairs or internal servicing should be handled by an experienced airsoft technician.
How quickly will my order ship?
Orders without preorder items are typically packed the same day when placed before 4:30 p.m. Central Time. Please note that occasional delays can occur during especially busy periods or when staffing is limited.
Will this part increase my FPS?
Not every upgrade increases FPS. Some parts are designed primarily for reliability, cycling speed, weight reduction, or gas efficiency. When a product has a tested FPS claim, it should be stated in the listing.