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Double Bell M4SS SIR (S-System) Metal Gel Blaster

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Double Bell M4SS SIR (S-SYSTEM) Metal Gel Blaster


Serious firepower. Heavy yet well-balanced. The Double Bell SIR M4SS Gel Blaster is a full metal blaster, which includes a monster of a rail!

This is a well-constructed, strong gel blaster AEG rifle featuring a full-length alloy top rail and RIS which allows you to add anything from sights to torches and PEQ boxes.

With the handguard being alloy and extending along the top of the upper receiver, everything is bolted together really well with next to no shakes or rattles.

 With the internals being conventional V2 there are hundreds of internal upgrades offered on the marketplace to personalize this gel blaster inside and out.

The rail extends over the entire top of the gel blaster, it also has additional rails on the sides and on the bottom of the front end. Features also include a folding rear and front sight.


  • Type: Automatic, battery operated
  • Firing Modes: Semi/Full-Auto, Safety
  • Heavy and well-distributed weight
  • Strong metal construction from tip to the stock tube
  • V.2 Metal Gearbox with metal gears
  • The big line diameter Spring
  • 18:1 Gear ratio
  • Metal receiver
  • Metal handguard 
  • Metal silencer fire cap/tip
  • Metal sight
  • Metal barrel
  • Metal outer barrel to reduce vibration
  • CNC Metal switch
  • CNC Metal Pin
  • Laser Print on Receiver
  • Extendable stock
  • Charging handle opens the dust cover
  • Rails on all 4 sides for tactical attachments
  • Uses 7-8mm gel balls
  • HOP-UP: Adjustable




  • LENGTH: 777mm
  • WEIGHT: 3081g
  • VELOCITY(FPS): 280-300 FPS -/+
  • MATERIAL: CNN All Metal
  • FIRE MODE: Safe/Semi/Full Auto
  • COMPATIBLE MAG : Double Bell M4 Magazine 
  • MAGAZINE: 250 gel approx
  • BATTERY: 7.4v Tamiya
  • HOP-UP: Adjustable
  • GEARBOX TYPE: V2 Gearbox
  • PLUG TYPE: Mini Tamiya

In The Box:

1x Double Bell M4SS (S-SYSTEM) Metal Gel Blaster
1x Double Bell M4 Metal Magazine
1x Flash Hider/Hopup in Black
1x Gel Packet

 **Battery and charger NOT included**

When you purchase products from Tactical Edge Hobbies, you can be sure that you are purchasing a high quality, reliable product with a 30-day warranty and a dedicated team of technicians to assist you with what you need.


Always use the appropriate eyewear and take all reasonable safety precautions when using our products.


Soaking & Storage of Gels

When soaking the gels, they need to be soaked fully submerged in warm water from the tap for a minimum of 4-6 hours.

Once they have fully grown you can leave them in the water and keep them in or out of the refrigerator.

When you are ready to use them just drain off any excess water with a strainer before you feed them into the mag but do not dry them as they need to be lubricated to work correctly.



Do not upgrade any part of your toy gel blaster as this will void the warranty. Upgrades refer to pulling any of the blasters apart or opening it up, changing springs, or upgrading the battery from 7.4v to an 11.v battery.

Elevate Your Arsenal

Step up your game with the gel blaster brands you've been longing for. At Tactical Edge Hobbies, we don't just offer the basics – we curate a selection of exclusive gel brands like We Tech and SRC. Unleash your full potential and leave your competitors in awe.

Embrace Adventure. Safely.

Ignite a sense of adventure while fostering safety and responsibility. Our gel blasters provide a thrilling and safe experience for you and your loved ones. Embrace the joy of teaching, bonding, and having fun together as you learn about guns and explore the world of gel blasting.

Customize and Conquer with Versatile Gel Blasters

Break free from the ordinary and embrace your individuality. Our gel blasters offer endless customization options, allowing you to create a masterpiece that perfectly aligns with your style and preferences. Step into the field with a gel blaster that's as unique as you are and conquer the competition with unparalleled versatility.