I keep finding recent topics that I missed...hmm, anyway.
I got one of these at Cabela's (in Wheeling, WV) last weekend for $30. I took apart the back portion of it (where the spring and plunger are housed).
Recommendation: don't open the back half.
The spring shot out; fortunately, it only hit a cardboard box. Once open, it was kind of hard to get the gears and pump set correctly. Also, it was difficult to close back up. Finally, there's not really anything worth doing in there.
The plunger chamber seemed to have an inner diameter slightly larger than a PS-800 (which I am a big fan of), and possibly a larger plunger stroke; I didn't have time to open up my PS-800 to do actual comparisons.
The plunger head is not like the PS-800; it's closer to the old-school nerf ones, but is made of a hard rubber or plastic (rather than soft rubber, like the BBB, for instance). When I stuck a piece of foam backer rod into the air output, the plunger slowed down to a crawl; therefore, I conclude that the plunger seal is just fine.
I took a few pictures with my mom's digital camera before the batteries died, but I forgot to get them off of the camera; I can get them up on Monday, although I'm not sure if there's anything of note.
As a side note, the three screws on the grip allow you to take off the grip; the grip is separate from the rest of the back half of the blaster. Another aside: the catch that allows you to open the blaster is kind of hard to pres. It has a strong spring, and is rather recessed. I can, however, flip it closed with one hand.
To preclude such questions: no, I didn't do any mods. Also, no I didn't do a range test. However, I can say that the iron sights are quite accurate...at least at a distance of 10 feet or less.
Another recommendation: Paint before nerfing outside. This thing looks very realistic.
And now a question, Mr BadWrench: Does the brass go all the way back (into the tighter barrel section)? It appears to in your pictures, but I'm not sure.
And another question: How did you get the extended barrel off? Did you have to cut it, or did I miss a screw while trying to take mine apart? The back of my barrel came apart fine, but the front of the barrel seemed to be glued together.
And a third: What do you mean by "the breech pops open"? Do you mean that it breaks in half?
Edit: I almost forgot: There is even cushioning for the plunger head! The plunger head has a short yet strong spring on the front of it.
Edited by jwasko, 03 September 2008 - 07:57 PM.