At an age where the eyes don't accomodate well to open sights anymore, I absolutely LOVE peep sights. I wish I had switched to them even earlier on some of my open sighted guns. I have a T/C peep on a White Mountain Carbine which did not have enough vertical adjustment for the original front sight, but that was solved by installing a taller front sight. For me and my eyes, accuracy with peeps is excellent.