I bought a bottle of it on Amazon for around $10 and applied it to my xd40. The pros: It does glow bright, is easily applied, doesnt differ much in the daylight from stock sights. The Cons: It needs to sit in light to recharge, so if u keep you weapon of choice in a dark storage area, once you pull it out the sights will not be charged. Also being a combat vet I never sleep good throughout the night so as I woke up throughout the night I kept checking the sights and they kept their glow for about 4-6 hrs, by the time 5-8 hrs come around its either really dim or completely dead. It does glow and it glows bright but it just doesnt last long and it has to be in light for it to recharge so depending on your intended application I would definitely recommend it as a cheap alternative if your firearms sees a decent amount of light throughout the day.
George Washington didn't use his right to free speech to defeat the British, He shot them!
One cannot fully appreciate their Citizenship until they've fought for it.
Yes, I do prepare for war. If no war happens in my time so be it, but my kids will be prepared for it in their time.