The club is made from raw hardened 17-4 stainless steel, designed for durability as it's harder than the 8620 and 431 stainless steel bodies used in PXG’s primary irons and wedges. The raw ...
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PXG 0311 Black Ops Iron Review
Firstly, to significantly boost MOI, PXG Black Ops irons introduces a Dual Cavity Design that is engineered to remove mass from the center of the club and redistribute that weight to the perimeter.