Just got my NOX bolt in the mail and did an initial "try out" too see what changed.
The bolt is probably the lightest I have ever held, when I first grabbed the envelope out of the mailbox I was a bit worried that maybe I just got some bubble wrap, but it was definitely in there.
The bolt feels a little fragile to the touch, but I did some research on the "Ertalyte" that the bolt is made of and apparently its some pretty tough stuff so Im not worried.
Here is where I found my info on "ertalyte" (http://www.emcoplastics.com/catalog_...spx?prod_id=27
When first sliding the bolt into my luxe I noticed it is a much tighter fit than my stock bolt, Im assuming this is because my stock bolt has 40+ cases on it already and obviously the NOX bolt does not.
When first dry firing my luxe with the nox bolt I noticed 3 things:
What little kick there was was reduced significantly (ridiculous amounts I was impressed)
and the sound signature was different, I dont know if I would say quieter, but definitely different.
Noticed an OBVIOUS increase in efficiency, I dont have exact numbers yet just because I dont have that much paint laying around but, I definitely was able to dry fire it for a significantly greater amount of time before my tank was empty.
While shooting paint through the gun I noticed:
Less kick then before, sound signature was still different.
Also i was able to shoot some paint that I have had laying around that the gun would not shoot with the stock bolt.
I will post up with efficiency numbers after my next practice, and ill keep people updated as to any changes I see as I shoot it some more.
Hope this helps people some on making a decision to purchase the bolt or not
Edit 12/11/08: After playing and shooting more with the NOX bolt I have found that the o-rings that came stock on the bolt were not allowing me to achieve a high enough velocity (300FPS). I swapped out the o-rings that came on the NOX bolt with the o-rings from my stock bolt and the issue is fixed.
Edit 12/13/08: Played with my NOX bolt in some serious cold today, below freezing and had almost no issues. I had my dwell set to 12 and noticed minor bolt stick, upped my dwell to 13 and everything was functioning perfectly. I also shot some extremely brittle paint in the arctic bull **** we played in, (basically stuff that other people just gave me because they couldnt get it out of their guns) And it shot great with no breaks.
On a side note, with my stock bolt I was running a high dwell and a very slow bolt speed, I found that the NOX bolt does not function properly with these settings. I had to drop my dwell and pick up my bolt speed a bit to get the performance I was looking for. Obviously every gun is different and things will change as the bolt breaks in, but I just thought I would note this for everyone.