Specna Arms SA-H02 ONE™ M4 AEG Airsoft Rifle – Black

The Specna Arms SA-H02 ONE™ delivers a perfect mix of rugged realism, solid internals, and real-world adaptability—making it an ideal choice for serious airsoft players who want a field-ready platform with zero compromise. Designed to thrive in both woodland and urban settings, this full metal electric rifle offers excellent out-of-the-box performance, coupled with easy adjustability for FPS and handling, thanks to Specna Arms' thoughtful engineering.

Built with a full metal body using zinc and aluminium alloy, and reinforced with steel at critical stress points, the SA-H02 feels solid in hand. You get that satisfying weight and durability you’d expect from a premium replica, without the fatigue you'd find in bulkier models. The rifle is anodised and powder coated for enhanced resistance to corrosion and wear, ensuring it maintains its sleek matte black finish even after heavy skirmish use.

One of the defining features here is the Enter & Convert™ quick spring change system. This clever design lets you switch springs in minutes without disassembling the gearbox—allowing you to instantly adapt your rifle’s performance to your environment. It comes shooting around 410 FPS with the standard spring for outdoor dominance, but swap to the included M90 spring and you're down to ~310 FPS for indoor or CQB play. Flexibility like this is invaluable for players who attend mixed-site events.

The gearbox is no slouch either—based on the tried-and-true V2 format but with reinforcement at the cylinder head, 8mm ball bearings, and steel gears to ensure durability and smooth cycling. The rotary-style hop-up chamber allows for micro-adjustments and is matched with a 270mm inner barrel, giving solid range and accuracy in a compact package.

The externals are loaded with user-friendly features. A 22mm RIS rail runs the length of the upper receiver and comes fitted with flip-up iron sights. Whether you’re running a red dot, magnified optic, or just the irons, this rifle is ready for your setup. The 14mm CCW threaded barrel is suppressor- or tracer-unit-ready—ideal for night games or players looking to complete a specific loadout aesthetic.

Ergonomically, the SA-H02 excels. The SF-style adjustable stock includes a textured anti-slip pad for comfort and control, and the textured pistol grip ensures positive handling even with gloves or in wet conditions. The functional bolt-catch adds a nice touch of realism during reloads and hop-up adjustment.

You’ll also find a 300-round Hi-Cap steel magazine included, feeding reliably and compatible with most M4/M16-style mags on the market. While the rifle is wired to a small Tamiya connector, it’s ready to handle LiPo or LiFe batteries with ease, making it a versatile and practical workhorse for any skirmisher.

From performance to customisation, the Specna Arms SA-H02 ONE™ is designed to grow with you as a player. It's ready for your upgrades, durable enough for daily use, and smart enough to adapt on the fly. If you're after a serious airsoft rifle that won't let you down—indoors or out—this one is well worth a look.

Features

• Full metal body with steel-reinforced stress points 
• Enter & Convert™ quick spring change system
• Reinforced Version 2 gearbox with 8mm bearings
• Rotary hop-up unit with 270mm inner barrel
• Adjustable SF stock with anti-slip pad
• 22mm top RIS rail with flip-up iron sights
• 14mm CCW threaded barrel for muzzle devices
• Operational bolt-catch for added realism

What you get

• Specna Arms SA-H02 ONE™ M4 AEG rifle 
• 300-round Hi-Cap steel magazine
• Flip-up iron sights
• Additional M90 spring for CQB

Details

• Length: 700mm (adjustable)
• Weight: 2680g
• Inner barrel length: 270mm
• Muzzle velocity: ~410 FPS (standard); ~310 FPS (M90 spring)
• Fire modes: Semi / Full-auto
• Gearbox: Reinforced V2 with 8mm bearings
• Hop-Up: Adjustable rotary
• Magazine capacity: 300 rounds
• Connector: Small Tamiya
• Material: Metal and polymer