Nuprol Delta Pioneer M4SD Airsoft AEG Rifle in Black

The Nuprol Delta Pioneer M4SD in full tactical black is a compact, skirmish-ready electric rifle that blends modern design, reliable performance, and upgrade-friendly features—all in a lightweight yet battle-tough package. Whether you’re new to the sport or need a dependable backup gun for CQB runs, this M4 variant delivers above and beyond its price point, and does it in style with an integrated suppressor for that aggressive, spec-ops look.

This AEG is built for close-quarters action, with a 724mm profile and full nylon fiber polymer externals that keep things light and nimble. The design takes cues from the M4/AR-15 platform, giving you familiar controls, rugged polymer furniture, and plenty of space to mount your tactical gear. The 20mm flat-top and RIS quad-rail setup provides ample room for red dots, lasers, lights, and foregrips—ideal for tailoring your rifle to your mission.

Firing at 330 FPS with 0.20g BBs, the M4SD hits hard and consistently, making it suitable for most UK sites. It’s driven by a high-torque 21,000 RPM motor that ensures fast cycling and a crisp trigger response whether you’re laying down full-auto cover or precision shooting in semi. The 6.03mm tight bore inner barrel and rotary hop-up with 50° rubber give you great accuracy and shot consistency, even during fast-paced action.

Internally, it features a Gen2 full metal Version 2 gearbox with 18:1 steel gears and 8mm bearings for long-term durability and smooth operation. This internal setup rivals that of rifles in much higher price brackets, giving you a dependable foundation with tons of upgrade potential down the line.

The built-in suppressor-style muzzle device gives this rifle its M4SD designation and helps streamline your silhouette for CQB use. The 14mm CCW threaded barrel allows for additional muzzle devices like tracer units or mock silencers if you want to change up the look or functionality.

The 6-position extendable crane stock is comfortable and adaptable, housing the rear-wired battery (Mini Tamiya connector). Pair it with a 9.6v NiMH battery for optimal performance. QD sling mounts on both the stock and handguard offer solid sling points for all-day carry or quick transitions in-game.

In the box, you’ll find a 120-round mid-cap magazine for reliable feeding with zero rattle, a detachable vertical foregrip, iron sights, a speed loader, and a Nuprol patch to show you’re part of the crew. The magazine is fully compatible with most standard M4/AR-15 AEG mags—ideal for building out your loadout without headaches.

To sum it up: the M4SD is a sleek, dependable AEG that’s perfect for indoor fields, urban combat, or as a lightweight, aggressive secondary. With solid internals, modern styling, and serious upgrade potential, the Delta Pioneer M4SD is a smart choice for any player who wants reliability, performance, and style in a compact package.

Features

• 330 FPS with 0.20g BBs – ready for CQB and field use 
• Full nylon fiber polymer construction for rugged lightness
• Integrated suppressor-style muzzle device
• Gen2 Version 2 gearbox with 18:1 steel gears
• 21,000 RPM high-torque motor for fast cycling
• 6.03mm tight bore inner barrel for precision shots
• Rotary hop-up with 50° rubber for consistent flight paths
• 20mm flat-top and quad RIS rail system for custom setups

What you get

• Nuprol Delta Pioneer M4SD AEG Rifle (Black)
• 120-round mid-cap magazine
• BB speed loader
• Cleaning/unblocking rod
• Detachable vertical foregrip
• Removable iron sights
• Nuprol logo patch
• User manual

Details

• Length: 724mm
• FPS: 330 with 0.20g BBs
• Power Type: Electric AEG
• Fire Modes: Safe, Semi, Full-Auto
• Gearbox: Gen2 Version 2, 18:1 steel gears, 8mm bearings
• Motor: 21,000 RPM high-torque, long shaft
• Inner Barrel: 6.03mm tight bore
• Hop-Up: Rotary with 50° rubber
• Threading: 14mm CCW
• Stock: 6-position adjustable crane stock
• Sling Mounts: QD points on stock and handguard
• Magazine Capacity: 120-round mid-cap
• Compatible Magazines: M4/AR-15 AEG mags
• Battery Connector: Small Tamiya (battery not included)
• Recommended Battery: 9.6v NiMH