Here's my Ruger 10/22 that I've turned into a budget training rifle for bullseye shooting from 50 feet to 100 yards, firing from the standing, sitting, and prone positions. Everything internal is standard factory Ruger, and the barrel is a standard-weight stainless steel Ruger.
The stock is a Dragunov-style from Advanced Technologies. I think it's called the Fiberforce, and it sells for $40. I like the feel of the pistol grip.
The rear sight is an Industry-brand biathalon style micrometer peep sight, .040 aperture, soft rubber eye cup, from Archer Airguns ($69). It clamps to 3/8" dovetail or tip-off mounts that are .42-.45 inch. I am using a Weaver T-09 scope base ($9).
The front sight is a Tech-Sight unit, with the M16 type front post screwed to a very tall position, to get the tip of the front sight about 1.25 inches above the center of the bore. It cost $20 from Tech-Sights.com. I actually have the rear peep Tech-Sight too, but this match grade rear sight is more what I really wanted.
These sights are considerably more comfortable to use than the standard Ruger open sights, and they are more accurate, too. Not quite as accurate as a 4X scope, but it's a significant improvement. And shooting this gun is good training for shooting my highpower target rifle.