It's just a little e-tape around the inside of the back of the dart chamber. While I know there are much more elegant ways of doing this I just wanted to get it done without buying any materials to see the result.
(sorry for the poor quality, it was impossible to get a good shot of the tape ring)
I was thinking of how make use of plunger tube volume (or air volume in general) without the use of a longer barrel.
What I came up with is the concept that with a stronger hold on the chamber has on the dart, the more pressure would build up before the dart is fired which would result in better ranges. This concept is the same as the system used in ball blasters like the reactor.. With ball guns, the speed at which the plunger tube is compressed doesn't really matter much because the ball is only fired once enough air pressure it built up to compress the ball a little and push it past the choke point at the tip of the barrel.
This is the same principal, but for darts. More force acting to hold the dart in place allows more pressure to build up which results in the dart being fired only when greater air pressure is reached. The added friction is all at the back of the dart so to reduce the amount of friction it experiences when it actually starts moving.
No concrete range tests done but if I had to guess it's getting about and added 5-10ft which is pretty amazing for such a simple mod. Not sure how accurate those numbers are because really hard to tell with all the variables with individual darts, and chambers but none the less there is a definite improvement in range. I compared the taped chamber shots to the not taped chamber shots. (The vulcan I was using was stock but the belt had pegs drilled out.)
So the same thing can be done with other blasters. All you need to do is create a better hold for the dart chamber. So for instance, if you had a brass breach, All you would need to do is put a crimped ring at the back end of the breech so when the dart tooth pushed the dart into the chamber it would get shoved in snugly the crimped ring.
This mod however will not work nearly as well, if at all for blasters that use turrets like mavericks, with poor turret to plunger seals.
If I'm not mistaken this mod does the kind of the same thing as a spring upgrade in that it increases the pressure at which the dart is fired.
Edited by Darthrambo, 22 December 2011 - 05:59 PM.