i have uses a ir death lenses and they are good. i bouaght a good .42x for only $40. i usaulaly find them in like littel electromnic stores owned by soem armel fellows. but ya, i recommend them, jsut dotn get the ones with the polarized cover thing, they leave eitehr a littel bit of a green tint, or a hell of a lot of blue tint. so ya.(posted 7659 days ago)