No lubrication needed
No orings to replace
Pisspoor customer service
Extreme long wait for bolt delivery
Ran almost 2000 rounds through this in one day and did not pinch or break one ball. Seemed to improve accuracy by a good amount, and held up great under high rates of fire and always recocked without o-rings. I would recommend this bolt highly to any marker owner. This bolt would get a 10 but. The quality and design of the bolt no way reflects on the terrible customer service and sale dept. of Spudnuk'l, I waited almost a month with no contact and no bolt. When trying to contact them you will get no respose and their shipping is a joke. I am not the only one to have this problem with them, and if you ever do get a email from them it is a lie or some song and dance about they sent it out last week even though the tracking number shows it was sent out days after you complained not last week. I would love to tell someone to buy this bolt on quality and performance alone but for some reason they will sell you the bolt and wait sometimes over a month to finally ship it. Dealing with this company is a headache and someday I will say that it was worth the wait but as of now I am still ticked about waiting over a month for my bolt and being straight up lied to about it by Spudnuk'l. It is a good bolt though and I like it very much. They do have a repair and replacement policy but I can only imagine what dealing with that would be like.
Great bolt for high or low pressure(depending on what bolt you get)
Great design and preformance
If you don't need the bolt anytime soon you will be very happy