Indispensable - Wheeler Fine Gunsmith Equipment Delta Series AR Armorers Bench Block

Nice little product which I found indispensable in building--I'm sorry, ASSEMBLING, my AR. It's ideal for a traditional fixed sight post upper, but is still useful nonetheless with low-profile gas block uppers. This is about as cheap as you'll find this deluxe version. The circular model was too small for me, the larger rectangular block was just right.