Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Is this bb air pistol, the Daisy 15XT being discontinued by Daisy?
Document: The pistol simply will not take the fourth cylinder - it will immediately leak when you try to insert a new cylinder displacing all the C02 into the air. Again, this is my second 15XT (less than one year old) with the exact same issue. I will not buy another.
Don't be fooled: the Powerline Daisy air pistol is the real deal.
I am on my second pistol with this one having the same problem a defective seal at the gas inlet. I bought this model because previous Daisy products had given me good service. Do not waste your money on this air gun it is obviously a bad design.
I love this bb pistol. It shoots hard and accurately. I like co2 pistols, this is my second one. I have also had a Daisy 5170, but i like the 15xt better. The 5170 might be more powerful, but i like the built-in magazine of this 15xt. I also dont like the way the 5170 looks as much as a 15xt because it has too many rails and a fake silencer.
After reading Chief Red Elk's review of the Daisy Powerline 15XT CO2 I ordered the 15XT the next day for personal protection. I am proficient in the use of firearms and do own several handguns, but felt that this would be a perfect non-lethal alternative to a firearm for personal protection. What I did with mine is as follows:  I inserted the CO2 cartridge and turned the knob until it fit snugly without actually piercing the cartridge.
Ive had other co2 bb pistols and this daisy is great. From five feet away I shot a bb into a telephone book and it ended up onpage num. 289. That's pretty powerful for a co2.
I do not normally refiew items I buy but I just loved this thing to shoots great good trigger pull, reliable daisy is a very trust worthy brand if you're looking for a cheap air gun this is it I found this in my garage Iam 33 and I owned this when I was 14 amd then all the memory's came back and after being lost for 20 years it still shoots like a champ..
Daisy did a great job on the Powerline 15xt.. Its one of the most powerful co2 guns out on the markket with 480 feet per second (fps)..The gun is all plastic but then again isn't everything today almost all plastic. With a single co2 cartridge,you can shoot about 60-75 bb's..It's a very good gun to buy for some outdoor fun or some bb gun wars..
I'm on my second Powerline 15XT pistol and I am experiencing the exact same problem as the first. There is a clear plastic seal where the CO2 cartridge nozzle fits in the handle and this seal is total garbage. This seal has now failed on two consecutive 15XTs. The company will send you additional seals when you call them but that is a sad way to do business - they should fix the design flaw.
this is a very good air pistol it has a lot of power and is really fun to use if you are thinking of buying one check this one out.
Answer: yes