I love these selectors - UTG Pro AR15 Ambidextrous 45/90 Safety Selector

I will never use a 90° selector ever again. Love the feel, look, & finish on this. The price is right also. As far as people not liking the stiffness, i think thats a personal thing cuz i love having a positive click that i can hear & feel. Especially when using a 45° selector. If u dont like the amount of resistance u can easily fix ot by cutting some of the spring down a lil. Only con is the short selector os a lil too short, but not a big deal. Great part. I have 3 of em.