PMI-3, nylatron bolt, ported valve, lightened hammer, auto mag spring mod, 14" All American, CAR stock, Lonestar bottomline,12V Revy
No lubrication required
This was a great upgrade for my marker. Improved my ROF another 2-4 bps. I ran 600+ ball through my gun with out a chop or misfire. The paint I was using was over a month old and had some dimpling. The bolt actually improve my gun accuracy a little over the venturi bolt I was, so in concert with the barrel I was group at 50 ft a 4x4" area and at a 150ft a 6x8" area.
Key advantage over Delrin is it will not swell, do to oils or other liquids coming in contact with the bolt.
Now for the bad, customer service is not the best at this company, so if this is a critical upgrade try to contact them first to see if they have your model in stock. Waiting time is lengthy I heard. I have a 4 day delay I getting mine shipped, but could not get in touch with someone to find out if it shipped.
I will most likely purchase another bolt for a Piranha I own, but be fore warned they have terrible customer service.