Barrels
1.25" This is the smallest barrel we sell, and is designed to deliver small packages a long distance at high speeds. Whether you intend to lob smoke bombs across the field or shoot a cluster of paintballs, this is a light barrel for a light load. A plus for this size is that you can use empty film canisters as sabots (sabots hold paintballs together and prevents them from breaking in the barrel).

1.50" This is the standard size barrel for the M203, and can replace your current stock barrel, or give you a backup should any unforseen problem occur with your original barrel. Also, if your original barrel was customized to fit a shorter than 14" barrel, this will provide you with a standard length to use with a different barrel or on a different marker.
The 1.50" is the mid-sized barrel for the M79. This length is idea for smaller grenades and mid-sized loads of paint. If smoke grenades are the desired fodder, then this barrel delivers. One of the best sizes for smoke bombs (in diameter) is the 1.5" smoke bombs. These smoke bombs fit nicely down this barrel, and slide down naturally (no need for a ramrod) so they load quickly in combat.

2.00" This is for the person who wants some serious paint-power for their M203. With a 2 inch bore this barrel can launch the biggest of M203 grenades, and the most paintballs. However, range may be slightly shorter than for the other sizes, so experimentation with sabots and play scenarios is highly recommended.
This is the standard sized barrel for the M79. If you cracked yours, stripped the threads, etc., you can benefit from the convenience of this as a back-up barrel. If you want a camo job on one barrel and all black on the other, an extra barrel will help you have both.

For the M79 only!!!
3.00" The big barrel for the big game! This is the largest barrel we have ever put on an M79. It requires special mounting brackets (included), but otherwise works fine. The 3" bore gives the capability to fire the biggest of all M79 paintgrenades, the most paintballs, or the biggest of smoke bombs.

Customizing your air cannon
Ball Detent The ball detent is a small device inserted into the breech of the barrel to prevent the M203 projectile from slipping out when using loose fitting smoke grenades or paint grenades. Want one? This is a free service I provide as an option to all of my customers for their barrels.

Camo Paintjob This is a camo paintjob that adds to the concealability of your M203. One price for all diameters and lengths for M203 barrels.

CO₂
Remote This is recommended for use with the M79. CO₂ powerlets work as well, but the M79 is at its beastly best with a remote. The remote is a black coiled remote with a quick disconnect, and is not made by us but rather a factory.

CO₂ Powerlets These are the disposable 12 gram "cartridges" for use with the M203 and the M79.

Sabots
Film Canisters These are just empty film canisters. They can be used as sabots (hold paintballs, make a better gas seal for smoke bombs, etc) for the 1.25" barrel. If you are having trouble finding them around your house, I have extras for sale here.