M203 Under‑Barrel Airsoft Grenade Launcher (Short / LMT Style)
Experience the unmistakable presence and theatre of a true 40mm under‑barrel launcher in airsoft form. This M203‑style launcher delivers an authentic loading, slide, and eject action with full metal construction and LMT‑style markings — built to look, feel, and operate like the real piece while staying safe for game use. It’s ideal when you want the psychological and tactical advantage of a dedicated room‑clearing device without adding bulk to your build.
Designed to mount quickly beneath M4/M16‑type rifles (and many other platforms with a 20mm rail) via the quick‑detach mount, the short tube format keeps things compact and manoeuvrable for CQB and skirmish play. When paired with airsoft grenades that use a gas propellant, the launcher releases a wide spread of 6mm BBs — a dramatic, effective option for suppression and clearing confined spaces.
The unit features rifling inside the tube for authenticity, positive grenade retention when loaded, and an ejector that holds spent grenades during opening. Safety and handling are thoughtfully addressed with a forward safety lever, a fitted trigger guard, and a robust slide‑back opening action that reproduces the handling of the military design.
Whether you’re building a realistic kit or want an attention‑grabbing tool for team tactics, this M203 replica balances realism, reliability, and compatibility — all in a short, all‑metal package.
Key features
| Feature |
| Quick detach mount for fast installation/removal |
| Short tube / compact under‑barrel profile |
| Authentic LMT-style markings and rifled barrel |
| Grenade retained in tube when loaded (secure fit) |
| Ejector holds grenade to back piece when opened |
| Safety lever in front of trigger for safe handling |
| Trigger guard included and easily mounted |
| Slide back and forth opening action (realistic feel) |
| Max grenade length: 115 mm |
| All‑metal construction where the real one is |
Specifications
| Specification |
Details |
| Model type |
M203‑style 40mm under‑barrel grenade launcher (short tube, LMT style) |
| Compatibility |
Designed for M16 / M4 type rifles; fits 20mm rail systems and many AEG handguards |
| Mount |
Quick detach (QD) mount (rail adapter included / standard 20mm) |
| Barrel |
Rifled inner barrel for authentic look |
| Max grenade length |
115 mm |
| Power source (grenades) |
Gas propellant — typically green gas or CO₂ (grenade uses onboard gas cartridge) |
| Blowback |
Non‑blowback (launcher does not use blowback action) |
| Operation |
Slide‑back loading; manual ejector retention |
| Material |
Metal components (barrel, receiver) with polymer/ribbed grip tube — all‑metal where the real one is |
| Safety |
Forward safety lever included |
| Additional |
Trigger guard included; authentic markings (LMT) |
| Weight |
Varies by manufacturer / see product listing |
| Notes |
Uses airsoft grenades (gas‑propelled) which disperse many 6mm BBs; always follow field & local laws. |
