PMI BL VF E-Force Frame, Evil Driver 14 inch barrel, 32deg spring kit, ACI drop forward, HT Stage 2 Regulator, custom low pressure chamber, running on 350 PSI with PMI Pure Energy Nitro Tank 3000/48
It is lighter, does not require lubrication, price
Just one thing, it expands
This had a potential of being a great product, I got it, put in, the springs needed adjustment because of feather weight of this bolt compared to the stock ones. But after 4 - 5 long days of games it just jammed in my marker. The bolt swelled up and now I can jam it into the marker half way and hold just the part that is sticking out and the marker will not fall down. While playing it I notice slight reduced ball breakcage and the marker did cycle very smoothly. But in the end I'm unsing it as a door stopper now. Also looks like the company either changed website or abandoned production.
When the bolt expanded the tech at Skirmish where I was playing gave me an old piranha stock bolt, its lighter than the red and green ones put out now and works just as well as the tigershark. Get that.