A&K MSD-B AEG Submachine Gun – Black

The A&K MSD-B AEG submachine gun is a portable P90-pattern platform rifle engineered for close-quarters combat and tight indoor environments. This variant combines a durable alloy upper receiver with high-density polymer chassis to keep weight down at approximately 2.26 kg, whilst maintaining genuine recoil impulse and field-ready ergonomics. With a compact 51 cm length, semi-automatic and full-automatic firing modes, and a two-stage trigger for precision semi work, it’s a natural fit for CQB skirmish sites across the UK.

Key Features

• P90 Platform – proven, compact layout with excellent handling in tight spaces, supported by standard P90 AEG magazine compatibility and a 100-round capacity.
• 350 FPS Output – consistent 350 FPS (±10%) on 0.20 g BBs ensures reliable engagement at typical UK indoor site distances.
• Alloy Upper Receiver – premium durability and realistic weight distribution without sacrificing manoeuvrability in CQB.
• Two-Stage Trigger – semi-automatic and full-automatic modes with trigger sensitivity suited to precision and suppressive fire.
• Accessible Hop-Up Adjustment – located inside the stock thumbhole with port door access by hand, allowing quick field adjustments without tools.
• Steel Charging Handle Bars – robust controls for reliable cocking and confident handling on the field.
• Lightweight Fixed Stock – solid, non-adjustable design keeps overall weight down and enhances manoeuvrability in confined areas.

Real-World Use Cases

• CQB Indoor Skirmish – the compact 51 cm length and 100-round magazine make it perfect for UK indoor sites where tight corridors and close-quarters engagements demand a nimble platform.
• First AEG Upgrade – players stepping up from a starter pistol or short rifle will appreciate the straightforward V6 gearbox, semi/full switching, and sensible 350 FPS threshold that suits most UK site limits (typically 350–400 FPS for AEGs).
• Speedsoft and Support Role – lightweight and fast-handling, ideal for speedsoft competitors and field support players who need manoeuvrability without sacrificing rate of fire or magazine capacity.

Technical Specifications

• Firing Rate: Semi-Automatic, Full-Automatic, Two-Stage Trigger
• FPS (0.20 g): Approx. 350 FPS (±10%)
• Length: 51 cm
• Weight: Approx. 2.26 kg
• Inner Barrel: 10.4 inches (264 mm)
• Magazine Capacity: Approx. 100 rounds
• Magazine Compatibility: Standard P90 AEG magazines (King Arms branded recommended)
• Gearbox: V6
• Motor: Standard
• Hop-Up: Adjustable, accessed via stock thumbhole port door
• Upper Receiver: Alloy assembly
• Stock/Chassis: High-density polymer, fixed
• Charging Handle: Steel bars
• Rail System: 20 mm RIS / RAS with 20 mm railed receiver
• Power Source: Electric (AEG)

What’s in the Box

• A&K MSD-B AEG Submachine Gun
• Standard P90 AEG Magazine (approx. 100 rounds)

Compatibility & Upgrades

The A&K MSD-B accepts all standard P90 AEG magazines; King Arms branded units are recommended for reliability. The V6 gearbox and standard motor can be upgraded with performance components if you wish to increase rate of fire or trigger response. Hop-up adjustment is straightforward and compatible with standard 6 mm airsoft BBs in 0.20 g, 0.25 g, and 0.28 g weights – heavier rounds improve consistency at outdoor sites. Common upgrades include high-torque motors for faster cycling, reinforced internal gears for longevity, and precision inner barrels for tighter groupings.

UK Legal & Site Notes

This is a Realistic Imitation Firearm (RIF) and is restricted to persons aged 18 and over. You must possess a valid UKARA defence or equivalent airsoft club membership to purchase in the UK under the VCRA (Violent Crime Reduction Act) 2006. Two-tone variants (pre-two-tone pink) are available for ages 14–17 without a defence, provided you do not convert them to all-black. Before using this submachine gun at any skirmish site, confirm the venue’s FPS limit – most UK indoor CQB sites cap AEGs at 350–380 FPS on 0.20 g BBs, which this rifle meets comfortably. Always check your site’s magazine capacity rules, as some venues restrict high-capacity mags in favour of mid-caps or real-caps.

Order the A&K MSD-B AEG submachine gun from Airsoftdirect today and enjoy fast, discreet UK dispatch. Although this item is currently out of stock, you can register your interest or explore our range of compatible P90 magazines, upgrade batteries, and performance parts to prepare for its return. Browse related CQB-ready platforms and submachine guns to find your ideal loadout.