Reviewer:
William Price
from Bealeton, VA United States
You could learn all about o-rings and little transitional bits of tubing and place several 25 dollar minimum orders with McMaster Carr or others and pay a bit less per part and end up with hundreds of o rings perhaps the wrong kind. But do you know what to order without disassembling the gun and measuring. What about other specs besides dimensions. Buy the kit. Watch the video. These parts have been carefully selected so that you don't have to be an engineer or purchasing agent.
Like owning a spare tire for your car. 
