Unfired NIB Colt M203 40mm Grenade Launcher w/ Stand Alone Chassis and M4 Under Barrel Attachments, NFA Destructive Device


Status: In Stock / Please Call to Purchase

This Chester County Armory listing is for a Colt Defense M203 40mm grenade launcher, NFA registered Destructive Device. This is Colt factory model number R0810, with the factory installation hardware for use with the M4 Carbine.

This model is currently installed in an Israeli made FAB Defense FD203 chassis system designed to turn the M203 into a stand alone shoulder fired system. The chassis also includes a Troy front sight tower and a Colt M203 rail mounted rear M203 grenade sight. Purchase of this model will also include the original, new in the sealed packaging, Colt mounting hardware for installation under the barrel of an M4 Carbine with an M203 Government profile barrel.  This includes the front mount and barrel clamp, the M4 upper handguard with fold up front M203 sight, the rear M4 handle mounted pendulum sight, and all required screws and wire ties. It also comes with its original Colt box with factory serial number, manual, and pull-through cleaning brush for the 40mm barrel.

This unique model was featured in a former Colt executive’s well-documented personal collection, and the serial number was originally created by Colt Defense specifically for him. The serial number on this model is “GL” prefixed, followed by “JKEM01”

Mechanically, this weapon is in fantastic, unfired, like new condition, with all operational mechanisms performing appropriately. The metalwork is solid, with no cracks, dents, dings, malformations, or scratches. The chamber face is solid with a well defined firing pin. The barrel rifling is clean and crisp, with squared off lands and grooves noted.  The action is smooth and the stock mechanism extends and locks appropriately. This model has not been fired. The FAB Defense stock chassis is also in like-new condition.

Cosmetically, this registered Destructive Device is also in like new condition. Some minor handling and storage marks are observed in the exterior finish at spots, but nothing that is more than cosmetic in nature (see photos).

The transferable destructive device is currently on an eForm-capable Form 3 that lists the manufacturer as “Colt” and the model as “M203.”


Individuals: prior to purchase, please make sure your Class 3 FFL/SOT dealer can accept a Destructive Device transfer. Under ATF rules, Type 01, Type 02, and Type 07 dealers may only accept two DD transfer’s per SOT year. An acknowledgement letter from these types of FFL/SOT dealers will be required to process a transfer. Type 09 and Type 10 FFL/SOT dealers are exempt from this requirement.

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    This Chester County Armory sale listing is for an original, unfired Colt M203 40mm grenade launcher with original Colt box and accessories.  The Colt factory number for this model is R0810. This item is an NFA fully transferable registered Destructive Device. This model is currently in-stock, in our possession, and available for purchase on a Form 3. Please call us at 610-235-6155 to purchase or for additional information on this item.


    Colt Defense





    Barrel Length



    Single Shot


    3 lbs


    Matte Black