I'm sorry, I realize there must be a lot of people who ask the exact same question but I just don't know where else to look.. I'm thinking about getting some night sights for my Glock 20. I currently have a TLR-1S installed on it, which stays on the pistol permanently, and think night sights would make for a great combo in low light or dark situations. Now, my budget is generally very tight but if it's really worth it, I can save for a while and get the right thing. I'm looking for a regular 3-dot system, nothing unconventional or too large. What would you guys recommend for me? I am clueless.