Best bang for the buck for this type of sight - NcSTAR STR Series Full-Size 1-6x24mm 30mm Tube Rifle Scope

There are plenty of detailed reviews on this model. To keep it short, why this sight is great? Doesn't look or feel cheap. Has a 3Gun style format starting at 1X going to a decent 6X, fairly clear across of the range. It's a second focal plan sight, so the unique reticle will not change size as you zoom. Downside your settings are at the original magnification. Easy way to have a sight in every rifle you have without breaking the bank. Farthest I've tried is 300yds and about 1K rounds with no issues. This is not for going to war, good enough for the range or home defense. Got one and like it so much, ended up buying another. You're picky? Expend 2X, 3X times more on a Vortex or something else. Otherwise, there's no reason to have a long gun without at least a basic sight like this.