My AB Biller 54 started accidentally discharging last Saturday. I've had the gun about 6 years, and its an entry level product, so I am not surprised that the trigger mechanism would wear out. What did surprise me was the way my call to customer service was handled.
I emailed first, but got no response, so I called. The guy I talked to told me the part was under warranty, which I knew, and that I just needed to send $20 and they would ship one anywhere in the US. The problem is, I don't live in the US. I asked if I could get one shipped to me in Mexico, but I was rudely told that was not possible. If I want a new trigger mech it can only be shipped to the US. Most US companies use some kind of carrier such as Fed EX or DHL, even UPS. All of these carriers ship internationally. I cannot understand why they refuse to ship me a warranty part. I find it even more difficult to understand the rudeness of the customer service department.
When I bought the gun I knew it was low end crap, but it was all I could afford at the time. I will certainly never buy anything else from AB Biller.