Please go easy on me 'cause this is my first instructable. This is similar to the modification by carrtoon on nerfhave, but it was indepent invention (I didn't use his mod).
Here is a video of it firing on and knocking down a styrofoam target. Note- there isn't any sound to this video. When it fires, it makes a loud gunshottish noise. Doesn't teh bullet go fast?
Step 1: Unscrew and Salvage
Unscrew the body of the recon and remove the spring. Save the barrel extension. Don't leave the screws lying around so you won't confuse them with the Longshot's screws. for some reason, the notes arent working on the image below so I put them here- this isn't my picture and take the large spring out.
Step 2: Unscrew Longshot
Remove all the screws from the longshot., removing the bolt by pulling or prying the 2 sides apart. If all the pieces fly all over the place, gather them in a pile. We'll deal with that later. Sry, no pics for this. NOTE---- Read step 4 before step 3, as reordering the steps wasn't working.
Step 3: Inserting Spring
Thanks for the picture, carrtoon. Take the plunger and separate it into 2 pieces. Take the recon's spring and insert it inside the longshot's spring. Reinsert into plunger chamber and secure with the screws.
Step 4: Removing the Air Restrictor
(deep breath) Thanks for the picture, Captianslug.com. Remove the bolt and plunger chamber from the gun and pull them apart. Take an electric drill and clear through the bolt, removing everything so it's a tube. Unscrew the back of the plunger chamber and remove the plunger. See the black thing at the bottom? Turn the plunger chamber upside-down and tap the bottom so the other thing falls out. drill out everything in the thing (another air-restrictor) so it looks like a funnel-shaped thing. Put the black connector thing back in the plunger chamber and reconnect the bolt and the plunger chamber, greasing the intersection as much as possible. (breathe out)
Step 5: Reassemble Longshot and Finish
Put the longshot back together. This (from AR removal step) picture really helps if when you opened it the pieces exploded all over the place. Take the barrel extension from the recon and attach it to the end of the longshot, as a tribute to the $20 you wasted and to make it look cool. Have fun! Note- not responsible for injuries or death caused by this awesome modification.