I too would put the vote for Harris. I used them while in Iraq, I had the 6-9 inch model with the swivel. LOVED THEM, the swivel is great for getting support off uneven surfaces. i.e. crumbling walls, rocks, uneven ground. I got a rail adapter. I would get a quick attack one, mine had hex head screws. Even when dusty, painted, they worked all the time. They even stood up to 4 IED explosions. Worth every cent! Its an investment you can not go wrong making