I wish I would have see this post before your purchase. I guess the Sig is good. I opted for the S&W M&P 15-22. This rifle has yet to jam on me. I shot Win, Rem, Eley, and Fed ammo. There were hyper, high and std velocity ammo. I am happy that the rifle prefers the cheap Win Wildcat ammo. I have a Browning Buckmark red dot sight on it and it is a blast to shoot.