1x 3/8 inch wooden dowel rod
3x ace 49 springs
2x 1in #6 bolts
2x 1/2 inch #6 sheet metal screws
1x 1/2 inch pvc coupler
1in ID PETG tubing, or something else tubeish with the same ID
Drill with a 7/64 and a 1/8 in drill bits
Dremel with drum sanding bit
So you have a stock nitefinder
Get it out of the package!
Open it up and separate the pieces according to this 1337 dizzyduck whiteboard diagram
Mark your plunger rod like this, and cut it.
Next, gather your dowel rod, pvc coupler, and 1/2 inch pvc
Cut 1&1/2 inches of the 1/2 inch pvc, and solvent weld it into your coupler.
Next, cut your 3/8in dowel rod to 12&1/2 inches. After you cut it to that length, measure 3&3/4 inches into the rod, and cut the notch like so.
Drill a 7/64in hole in the top and bottom of the dowel rod. Try to center it as good as possible.
Then drill a 1/8in hole through the hole already in the plunger head and through the pullback piece from the plunger rod like so:
Attach the pullback piece to the end of the rod farthest from the catch notch, then slide on your catch, springs, then finally screw on your plunger head using the 1in #6 bolts like so:
Next, it's time to prepare your plunger tube!
Cut it to 12&1/4inches, and de-bur any ends you cut.
Next, take the pvc coupler with the stub of pvc you solvent welded in, and wrap etape around the stub until it fits snugly in the plunger tube. Slather it with goop, and press it into the plunger tube. Drill two starter holes for your sheet metal screws on opposite sides of the plunger tube, and drill them in like so. This will keep the coupler from coming out and act as a dart stop.
Now, we'll need to prepare the shell for it's new larger OD plunger tube. First, cut off the front part of the shell that holds the stock barrel's tip. Then use a grinding bit on your dremel to enlarge the hole at the front of the gun like so:
Now, insert your plunger rod (with head, springs and catch attached) into the plunger tube. And place it in your blaster like so:
Make sure you lube your plunger head! I use this
Now, i can't find a better way to secure the plunger tube, so fill the area under the tac rail/over the plunger tube with hotglue.
Now close it up, put all the screws back in. Notice that the topmost right screw port was destroyed when enlarging the front hole, so drill out the port so you can insert a zip tie to hold it shut.
Now you have an awesome nitefinder that is primary worthy! A nearly perfect seal too! This puppy has a ton of draw length (i didn't measure)
The ace 49's get full compression too!
Well that's it! Questions, comments, flames?
Edited by thesaz123, 11 January 2012 - 06:04 PM.