Just buy my first 22lr rifle, S&W M&P 15-22 with Iron Sights (A2 type)! Just knowing the important aspect to learn to use the sights in a new gun a question just pop in my mind... Can I get a scope for plinking to 50 to 100 yards with my A2 sights installed? Its worth to spend some money on folding sights and a scope to be able to co-witnes? Any one in this forum already do that? Any comment will be appreciated! Thanks!