Black 04 BKO, unmilled, with MacDev red valve, Sonic LPR, MacDev feed neck, CP HPR, CP .689 12" one piece, Vapor bolt, Dead On drop with on/off.
Light, well made, o-rings around inlet, short.
Outlet is smaller than on most other bolt possibly reducing flow.
Front o-ring was smaller than back one. I put an o-ring the same size as the back and the bolt chopped it.
Bolt moves very smoothly.
The Bonebreak jewel was nice but it keeps you from adjusting the tension on the pin retaining ball which seems a little light.
A nice retaining pin comes with it.
The face of the bolt was flush cut and the outlet port had no bevel to cup the ball.
Prior to installation my gun was running 285 fps /- 5. After installing I saw no real change in performance, and my velocity was 286 /- 5.
Noted no blowback, seemed to seal the chamber well.
On a par with the Vapor bolt minus 1 o-ring. If it weren't for the price $40 the rating would be a 9 or 10
8 out of 10
Last edited on Friday, December 3rd, 2004 at 6:37 pm PST