Kynshot hydraulic buffer - Mesa Tactical KynSHOT RB5103 Hydraulic Buffer

Do not use this if your life depends on it. I installed it and bore sighted my crimson trace laser then went to the range, every shot was 9” high and 2” to the left at 15yards with full power 1600 fps slugs. I took my first shot then adjusted to the point of impact then I shot and it was just like the first shot. I made the same adjustment and shot to get the same results again and again. I assume it’s the movement during the compression of the buffer. I went home installed a regular ar buffer tube and after a couple shots had it putting ears on holes with the same type of slugs. But yes it softened the recoil a lot if that all you want.