Was very impressed with the shipping and packaging of product, even got some really nice freebies, and the gas block it's self was machined perfectly it is a slightly heavier gas block but it is made of steel and will handle stress and head better than the "aircraft" aluminum ones you see all over it is also extremely sturdy and if installed properly will hold true and not shift it also is perfectly level with my A4 upper and rear and front sight alignment was perfect definitely a 9/10 gas block would be 10/10 but it has some decent heft I would still recommend this gas block though.
