Cyma/EMG Strike Industries 4" AR Strike Oppressor M4 Short Barrel MWS Gas Blowback Airsoft Rifle in Black (SI.1301 BK)

The CYMA/EMG Strike Industries 4" AR Strike Oppressor M4 is an ultra-compact gas blowback airsoft rifle built for players who want maximum manoeuvrability without giving up the mechanical feel and realism of an MWS-style GBB platform. Officially licensed by Strike Industries, the SI.1301 BK combines CNC aluminium construction, distinctive Strike Industries furniture and a tiny 4-inch barrel configuration with a Tokyo Marui MWS ZET-compatible operating system. For anyone looking at gas rifles for CQB or close-range skirmishing, this airsoft gun offers a particularly interesting mix of compact dimensions, realistic recoil and a well-supported internal platform.

Starting at the front, the most eye-catching component is the Strike Industries Oppressor-style muzzle device. It gives the rifle an aggressive, unmistakable profile and works brilliantly with the very short 4-inch outer barrel. This puts the platform firmly into PDW territory rather than conventional carbine dimensions. A 14mm CCW muzzle thread provides compatibility with suitable airsoft muzzle accessories where required. The result is a front end that stays completely out of the way when moving through tight doorways, narrow corridors or cramped indoor structures. If you've ever clipped a long barrel on a door frame at exactly the wrong moment, you'll understand the appeal immediately.

Behind the muzzle sits a short M-LOK handguard that keeps the rifle slim while still providing enough mounting space for the essentials. M-LOK slots allow compatible lights, hand stops or other compact accessories to be positioned without loading the rifle down with unnecessary rail sections. Given how short the platform is, restraint is probably a good idea here; hang half the contents of a tactical accessories catalogue off the front and you've rather missed the point. The upper rail still provides room for a compact red dot or similar optic, making it easy to build a clean CQB-focused setup.

The upper and lower receivers are CNC machined from aluminium alloy, giving the rifle the solid feel expected from a full metal gas blowback platform. Authentic Strike Industries markings and styling details run throughout the build, helping it look like a complete licensed design rather than a standard M4 wearing a few aftermarket-inspired parts. Custom furniture includes the Strike Industries-style pistol grip, flat-faced trigger and distinctive external controls. Finished entirely in black, the rifle has a clean, modern appearance that suits everything from lightweight CQB rigs to more conventional tactical loadouts.

At the rear, the Strike Industries-style PDW telescopic stock is a major part of the rifle's compact handling. Collapse it and the platform becomes extremely short, ideal for confined indoor environments or players who prefer to keep the rifle tucked close to the body. Extend it and you regain a more stable shoulder position for longer shots or outdoor use. Unlike a standard M4 stock and buffer tube arrangement, the PDW layout keeps the overall footprint minimal. Combined with the 4-inch barrel, this creates an airsoft rifle that changes direction quickly and feels particularly natural when working around cover.

Internally, the SI.1301 BK uses an MWS ZET System-compatible gas blowback platform. Compatibility with Tokyo Marui MWS-spec magazines is one of the strongest practical aspects of the rifle, giving owners access to a broad and established magazine ecosystem. The MWS format also benefits from extensive aftermarket support, with compatible hop-up components, inner barrels, nozzles and other replacement or tuning parts widely available. That makes this compact airsoft gun a much more sensible long-term proposition than a proprietary platform with difficult-to-find spares.

Gas blowback operation gives the rifle the mechanical feedback that makes GBB platforms so enjoyable to use. Each shot cycles the action and produces a noticeable recoil impulse, while the moving bolt adds a level of realism that electric systems simply don't replicate in quite the same way. The compact size of the rifle also helps make that cycling action feel lively in the hands. Fire controls provide Safe, Semi-Auto and Full-Auto modes, while Green Gas powers the system. As with any gas blowback rifle, performance will vary with temperature, gas pressure and BB weight, but the stated output sits at approximately 300 to 350 FPS.

An adjustable hop-up system allows BB backspin to be tuned for different ammunition weights and site conditions. That matters on a rifle this short because effective airsoft range depends far more on hop quality, consistency and ammunition choice than simply having a long outer barrel. Although the 4-inch configuration is clearly designed with CQB in mind, the MWS-style system and adjustable hop mean the rifle is still capable of useful performance outside indoor arenas. Taken as a whole, the CYMA/EMG Strike Industries 4" Oppressor is a focused little gas blowback rifle with a lot going for it: licensed Strike Industries styling, CNC aluminium construction, a genuine PDW-sized footprint and compatibility with the established MWS ecosystem. If short, sharp and mechanical is your preferred flavour of airsoft, the SI.1301 BK makes a very convincing case for itself.

Features

• Officially licensed Strike Industries replica 
• Authentic Strike Industries trademarks and styling
• Ultra-compact 4-inch PDW barrel configuration
• Tokyo Marui MWS ZET System compatible platform
• Compatible with TM-spec MWS gas magazines
• CNC machined aluminium upper and lower receiver
• Strike Industries Oppressor-style muzzle device
• Strike Industries-style PDW telescopic stock
• M-LOK accessory mounting handguard
• Custom Strike Industries furniture throughout
• Flat-faced trigger design
• 14mm CCW muzzle thread
• Adjustable hop-up system
• Safe, Semi-Auto and Full-Auto fire modes
• Realistic gas blowback recoil operation
• Compact CQB-focused profile
• Full metal construction
• Black tactical finish

What you get

• CYMA/EMG Strike Industries 4" AR Strike Oppressor Gas Blowback Rifle 
• Gas magazine
• User manual
• Factory packaging

Details

• Manufacturer: CYMA / EMG
• Model: SI.1301 BK
• Licensing: Official Strike Industries licensed product
• Platform: Gas Blowback Rifle / M4 PDW
• Operating System: MWS ZET System compatible
• Construction: CNC aluminium alloy receiver
• Colour: Black
• Outer Barrel Length: 4 inches
• Magazine Compatibility: Tokyo Marui MWS M4 / AR-15 gas magazines
• Handguard: M-LOK rail system
• Stock: Strike Industries-style PDW telescopic stock
• Muzzle Device: Strike Industries Oppressor style
• Thread Direction: 14mm CCW
• Fire Modes: Safe / Semi-Auto / Full-Auto
• Hop-Up: Adjustable
• Gas Type: Green Gas
• Velocity: Approximately 300 - 350 FPS