Blackviper B3803 M4 Fully Auto Airsoft Rifle in Clear/Black

Blackviper B3803 M4 Fully Auto Airsoft Rifle – Clear/Black

The Blackviper B3803 M4 Fully Auto Airsoft Rifle in Clear/Black is an excellent choice for players stepping into the world of airsoft, offering a dependable blend of performance, ease of use, and affordability. It’s the sibling of the well-regarded B3814, sharing the same core gearbox and performance traits, but wrapped in a distinctive clear and black finish that adds a unique visual edge.

At the heart of the B3803 is a lightweight yet solid polymer body that keeps handling nimble without sacrificing durability. The gearbox shell is also polymer, but don’t let that fool you—this setup is designed to withstand the rate of fire (ROF) it delivers, making it a surprisingly tough contender for its price range. The polymer construction also means it’s comfortable for long skirmishes, especially for younger or newer players still building up stamina on the field.

The rifle delivers around 300 FPS, putting it squarely in a comfortable performance bracket for CQB environments while still offering enough punch for light outdoor play. The adjustable hop-up allows you to fine-tune your shots for accuracy and range, which is especially useful when transitioning between tight indoor corridors and more open spaces. The rate of fire is impressive for an entry-level airsoft AEG, giving you the ability to lay down steady suppressive fire when the situation calls for it.

Feeding that ROF is a generous 400-round high-capacity magazine, meaning fewer reloads and more time in the action. The mag feeds reliably, whether you’re shooting in semi or going full-auto. The full stock design provides a solid shoulder mount for steady aiming and helps balance the rifle nicely during extended firing sequences.

The B3803 is powered by a rechargeable NiMH battery (included), with a charge time of roughly 2–3 hours. It’s a simple, plug-and-play system—no need for complicated upgrades or modifications to get it working out of the box. Just charge, load, and you’re ready to play. For new players or those looking for a casual practice rifle, this low-maintenance approach is a big win.

Despite being in the budget-friendly bracket, the Blackviper B3803 still offers those small details that make handling more enjoyable. The adjustable stock allows users of different builds to find a comfortable shooting position, and the rifle’s overall ergonomics make it intuitive for beginners while still satisfying more experienced players looking for a lightweight backup gun.

If you’re after an affordable yet capable airsoft rifle that’s easy to maintain, delivers solid performance, and comes with the practicality of a high-cap magazine and adjustable hop-up, the Blackviper B3803 is a strong choice. It’s a great way to get into the game without breaking the bank—offering plenty of fun and enough firepower to keep you competitive.

Highlights

• 400-round high-capacity magazine for extended play
• Solid polymer body and gearbox shell
• Full stock for stable shooting
• 300 FPS performance for CQB and light outdoor games
• Adjustable hop-up for improved accuracy
• Semi and full-auto fire modes
• Lightweight and easy to handle
• Rechargeable NiMH battery with 2–3 hour charge time

What's Included

• Blackviper B3803 M4 Fully Auto Airsoft Rifle – Clear/Black
• 400-round high-capacity magazine
• Rechargeable NiMH battery
• Battery charger

Technical Specifications

• Magazine capacity: 400 rounds
• Measured velocity: 300 FPS
• Hop-up: Fully adjustable
• Fire modes: Semi-auto / Full-auto
• Body material: Polymer
• Barrel material: Metal
• Gearbox shell: Polymer
• Power source: NiMH rechargeable battery
• Charge time: 2–3 hours
• Stock type: Full, adjustable length