I recently bought a PT24/7 G2C, 40 S&W. I was looking at it the other day and noticed that the front sight was loose! I just moved from Nevada to Oregon and don't have any of my tools, and I don't know what size wrench to tighten it back down with. The tools that came with the pistol don't...

I recently bought a PT24/7 G2C, 40 S&W. I was looking at it the other day and noticed that the front sight was loose! I just moved from Nevada to Oregon and don't have any of my tools, and I don't know what size wrench to tighten it back down with. The tools that came with the pistol don't seem...