Sleeving

Sleeving is a method of reinforcing pipe, typically thinwall PVC pipe, by placing it inside a larger diameter pipe. For sleeving to be efficient, the outer diameter of the inner pipe needs to closely match the inner diameter of the outer pipe.

Another reason for sleeving barrels is to create more appropriate diameters for specific projectiles. For instance, if the barrel inside diameter is 2.00" and you have a slightly smaller projectile, another PVC barrel could be inserted inside the 2.00" diameter barrel. The resulting smaller diameter barrel would be an apprporiate size for a golf-ball or other unusual projectile.

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