Great product - perfect for upper assemply - Wheeler Engineering Delta AR-15 Upper Vise Block Clamp

This Upper Vise Block Clamp works great and OP has it for a great price. I've already used it twice and couldn't be happier.

I was initially looking at one of the 'action rods' for an upper build and after watching a number of videos, realized that this type of vise block is better for barrel and barrel nut assembly. An action rod is really only better for muzzle device installation and removal.

I've tried this vise block with an A1 upper as well as an A2 and several flat-top uppers and it fits perfectly with all of them. Unfortunately, it may not fit some uppers, like left-handed and billet uppers, but your mil-spec uppers will fit great.

I also really like the insert and gas tube guide. It helps prevent crushing the upper in case you're too happy when tightening the vise.

***NOTE that the vise block is made with two identical parts that are hinged together. This is NOT a mistake. However, it IS brilliant in design and smart in manufacturing. The factory can't assemble it incorrectly and you can't put your upper in the vise block in the wrong direction. It fits from both ends.