The LMT Defense M203 Mounting Kit For Carbine is a complete hardware set engineered to mount a standard M203 grenade launcher to an M4‑type or other carbine‑length AR platform. This kit includes the dedicated carbine handguard, mounting hardware, and leaf sight assembly, providing a purpose-built interface that keeps the launcher secure while maintaining consistent alignment with the host firearm.

Designed specifically for carbine‑length barrels, this kit streamlines installation and helps ensure a clean, professional fit without unnecessary modification to the rifle. It is well suited for training, range use, and enthusiasts configuring an under‑barrel launcher on a compatible carbine. The thoughtful design and precise machining reflect LMT Defense’s reputation for dependable, hard‑use components and careful attention to detail.

Key Features:

• Manufacturer: LMT Defense
• Model: M203 Mounting Kit For Carbine (L4B1)
• Style: Complete mounting kit with carbine handguard and leaf sight assembly
• Compatibility: Standard M203 launcher on M4‑type and carbine‑length AR platforms
• Included Components: M203 mounting hardware and leaf sight assembly
• Color: Black