S&T M203 Style Grenade Launcher (POLYMER)

  • RIS & Barrel Mount
  • Fires 40mm MOSCARTS
  • Instant Firepower Upgrade

An M203 Grenade Launcher replica which fires 40mm MOSCART Grenades and attaches to rifles either by a 20mm rail or direct to an M4/M16 outer barrel.

Full description


This Airsoft replica of the world's most recognisable underslung grenade launcher is brought to you by S&T, and is mainly constructed from Polymer but with Alloy internals and trim components for structural strength and longer life performance. The sleeve of the launcher is made with a smooth Polymer and barrel is a matte-finished Polymer which matches the look and feel of the real thing very closely.

The launcher can connect with a rifle either by the 20mm adapter included (so that it can attach to anything with a 20mm rail), or by using the built-in barrel mount which attaches to an M4/M16 outer barrel once the lower handguard is removed. The barrel mount is how an M203 is traditionally mounted, however the included 20mm adapter is a nice bonus as it means you can stick this launcher pretty much anywhere for some hilarious combos. (Protip: A grenade launcher mounted in place of your optic is very in this season - go and make it a fashion trend).

The grenade launcher is fed by 40mm MOSCART grenades which are sold separately. There are many types of grenades that work in different ways but will essentially launch a shower or stream of 100s of BBs at your opponents with one pull of the trigger (some even launch a physical rocket).

If you're looking for a neat and cost effective way to slam a load of extra 'oomf' into your rifle or you're just looking to complete your Armed/Special Forces loadout, then the M203 Launcher is a good way to go!


  • Underbarrel grenade launcher
  • Mounts to 20mm RIS
  • Mounts to M4/M16 outer barrels
  • Fires 40mm MOSCARTS
  • Shower your opponents with BBs
  • Scare enemy team into submission
  • Ideal for sneaky squad wipes
  • Makes any AR platform rifle look beast
  • Pretend you're Arnold Schwarzenegger
  • Be THAT guy
  • BLOOP!

Package Includes:

  • M203 Style Grenade Launcher
  • Picture Based Instructions
  • Barrel Mount
  • RIS Adapter

Special Instructions:

Please note that the 'FPS' field is required to be filled in, therefore we have put a rough FPS based on our experience with MOSCARTS. Depending on the grenade you use, you will get different FPS results.



Weapon Construction External
Weapon Type
Over 18 Only Icon
Over 18
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes, No,
FPS Icon
FPS (Feet Per Second), using 0.20g BB
Approx. 250fps ± 10%, using 0.20g BB
Included Items
20mm Ris / Ras Mount
Skill Level Icon
User Skill Level
Regular Player

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 0.7kg, Approx. 0.736kg,
Weapon Length Collapsed
Length (Collapsed)
32cm, 39cm,
Weapon Length Extended
Length (Extended)
44cm, 51cm,


Colour Wheel Greyscale
Primary Colour
Black, Tan ,
Colour Wheel Greyscale
Secondary Colour
Two Tone Icon
Pre Two-Toned
Construction Icon
Polymer body w/ Alloy internals/trim
Weapon Construction External
External Construction
Gearbox Icon
Internal Construction

Weapon Specific

Power Source Icon
Powered By
Green Gas
Blowback Icon
Weapon Platform
M203 Grenade Launcher
Magazine Style Icon
Magazine Style
40mm Grenade
Fire Select Icon
Fire Selector
Weapon Safety Features Icon
Safety Features
Trigger Lock
Shooter Configuration Icon
Shooter Configuration


Hop-Up Unit Icon
Hop-Up Unit


Sight Type Icon
Sight Type

Product Testing Data

Notepad Icon
Test Description

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