Brand: LMT Defense · SKU: M203-Receiver · MPN: M203 Receiver (LMT designation varies) · Category: Components

This is a complete LMT 40mm M203 receiver designed to be mounted to any standard 1913 Picatinny rail system. It is a Type 1 receiver, meaning it is not classified as a Destructive Device by the ATF until a barrel is mounted. The receiver is machined from durable 7075 T6 aluminum forging and includes the necessary three recoil lugs and three locking lugs for secure rail attachment. It does not include the barrel or sight.
| Caliber | 40mm |
|---|---|
| Material | 7075 T6 Aluminum Forging |
| Mounting Style | Rail Mounted (1913 Picatinny) |
| ATF Classification | Type 1 Receiver (Not a Destructive Device until a barrel is added) |
| Included Components | Three recoil lugs and three locking lugs |
| Barrel Length (Example Complete Unit) | 9" or 12" (Barrel sold separately) |
| Warranty | Manufacturer Warranty (Details vary by retailer/purchase) |
| Weight | 160 oz (Approx. 10 lbs, based on one listing's shipping weight) |
| Dimensions | N/A (Receiver only) |
The LMT Rail Mounted M203 Receiver is a robust, rail-compatible component for the 40mm M203 grenade launcher system. It is built from high-strength aluminum and designed for easy attachment to modern rifle rail systems. Crucially, as a receiver only, it is transferable as a normal firearm (Type 1) pending ATF regulations, avoiding NFA registration until a barrel is attached.
Yes, this LMT Rail Mounted M203 Receiver (Type 1) (M203-Receiver) is 100% genuine LMT Defense hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This LMT Rail Mounted M203 Receiver (Type 1) includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the M203-Receiver.