Step 10: Air Restrictor / Air Limiter Removal
Nerf limits the ranges of their guns by using air restrictors and air limiters in their guns. Removing the air restrictors and air limiters in a gun will increase the gun's range. There is not much to the removal of an air restrictor. Air restrictors can simply be thrown away once they are identified. Air restrictors almost always have the same exact shape: a small piece with three prongs found with a spring. This air restrictor assembly always includes a small spring, which should be discarded with the restrictor itself.
In spring guns: Spring guns almost always have air restrictors and air limiters. Picture 1 shows the air restrictor and air restrictor spring in a Nitefinder. The first air-limiting piece to be removed is the barrel post. The barrel post is the long rod that the stock Nerf dart slips over when it is placed in a Nerf gun. It is shown in Picture 2. The excess plastic left after that (Picture 3) can then be removed, in this case, with a drill. Before the drillng, the air had to flow through the small gaps in the two plastic pieces. Removing these air limiters allows air to flow to the dart quickly and gives the dart more range.
In pump guns: Pump guns almost always have some sort of air limiters, but they do not often have actual air restrictors. Keep in mind, air restrictors are the pieces (often with three prongs) that are located with a spring. Picture 4 demonstrates the removal of air limiters in a pump Nerf gun, specifically, the Nerf Titan ASV-1. Notice the air-limiting material structured like a grate. These air limiting "grates" reduce the Titan's range because air is forced to flow around the air limiters. The author of the picture used a Dremel with a cutting bit to remove the air limiting "grates."
Picture 3 courtesy of NerfHaven user Gengar003
Picture 4 courtesy of NerfHaven user hereticorp