Paintball guns, often called paintball markers, are used to mark an opposite player with paint in the paintball game. Today, there are a number of manufactures who provide different types of paintball gun parts at different price levels. Some of the important paintball gun parts include bottom line adapters, bolts, quick disconnect feed necks, dye-mini gauge, CP micro drop, hopper adapters, maddman spring kits, valves, barrels, stocks, grips, mags, and vertical adapters.

There are different types of bottom line adapters including Core ASA On/Off, Check It Uni-mount on/off, and PMI bottom line angled adapter. Check it uni-mount on/off is the most convenient bottom line adapter found nowadays. It features a knurled cap and a bleed hole. PMI bottom line angled adapter, one of the standard angled bottom line ASA adapters, comes in black and chrome color. Hopper adapters come in a variety of colors such as blue, black, and gold. CP micro drop is meant for front players. They are available in blue, black, green, red, and silver colors. Vertical adapters feature low pressure porting and admit all standard low pressure chambers.

Bolts help to reduce breakage due to slow feed. Stocks are available in modular designs. It is made from injection molded plastic, which is highly durable. Grips are usually made from glass filled nylon material. The overall length of grip is about 7 inches. Mags are manufactured from injection molded plastic. Air fittings and macroline are provided along with mag kits. Dye-mini gauge are ideal for compressed air tanks. These are available in 5000k and 1500psi. Maddman spring kits helps to increase velocity, performance and accuracy.

In addition to the above, other important paintball gun parts are rams, batteries, triggers and frames, ball detent, shaft-o-ring, valve tools, magic regulators, and outkast regulators. Some manufactures also offer accessory kits and online services.