Specifications

SiJun SJ MP5K Gel Blaster | Compact Blowback SMG

🔥 Experience the next level of close-quarters realism with the SiJun SJ MP5K Gel Blaster – a compact, powerful SMG-style gel blaster designed for speed, precision, and durability. Perfect for collectors and skirmishers alike, this MP5K combines semi-auto & full-auto firing modes, blowback action, and last round slide lock for a true-to-life shooting experience.

Built with a durable nylon body and reinforced metal parts (including gears, piston ladder, trigger, charging handle, sling swivel, and barrels), the SiJun SJ MP5K is engineered for reliability in even the most intense gel blaster battles.

Whether you’re running tactical drills, enjoying backyard skirmishes, or building your collection, the SJ MP5K Gel Ball Blaster delivers authentic handling and performance.

Key Features:

✅ Compact, stockless MP5K gel blaster design
✅ Semi-auto & full-auto fire modes for versatility
✅ Realistic blowback action with mag prime function
✅ Last round slide lock for added realism
✅ Reinforced metal components for strength and durability
✅ Durable nylon construction for lightweight handling
✅ Threaded 14mm CCW muzzle for attachments

Specifications:

• Brand: SiJun

• Model: SJ MP5K

• Fire Modes: Semi-auto / Full-auto

• Construction: Nylon body with metal internal parts

• Gearbox Material: Nylon

• Colour: Black

• Plug Type: XT30

• Thread Type: 14mm CCW

• Ammo Type: 7–8mm gel balls

• Size: 40 × 30 × 6cm (L × H × W)

• Weight: 1540g

Performance:

⚡ Velocity: 200–210 FPS
🎯 Effective Range: 20–25m

Package Includes:

• 1x SiJun SJ MP5K Gel Blaster

• 1x 7.4v XT30 Plug LiPo Battery

• 1x USB Charger

• 1x Protective Goggles

• 1x Pack of Gel Balls

• 1x Nylon Muzzle

• 1x Magazine

Why Choose the SiJun SJ MP5K Gel Blaster?

The SiJun MP5K is built for players who demand realism, performance, and reliability. Its compact size makes it perfect for CQB (close quarters battle), while the metal-reinforced internals and blowback system give it a premium feel unmatched by standard gel blasters.

👉 Whether you’re a serious gel blaster enthusiast, a collector, or just love the legendary MP5K design, this model is a must-have.

🛒 Order your SiJun SJ MP5K Gel Blaster today and gear up with one of the most realistic SMG-style gel blasters available!

Remember, one mag is never enough LOL. Why not pick up a spare mag, or two, and make the most of the free shipping on this order.

We found the best performing gels, for this blaster are the Tenacity AKA Ultra Hard Gels

Click the image, to add the best Gels for your MP5K to your order

Note: Suppressors are Aesthetic enhancements only, and do not change the noise level, or offer any sound suppression for your Blaster. They’re just to add style.

Please note, this is a Gel Blaster Toy and not a Real firearm

Always “Stop and Think” when using your blaster, and carry it in a suitable bag or case between home, the car and to the Gel Ball Battle fields. Never point, or shoot your Blaster at animals, or people without their permission. Always use suitable eye protection, when using your Gel Blaster.