Make per qq-a-225/8, aluminum bar, alloy 6061-t651, 1.0895 inch diameter; 3.530 inch long; protect per la0116-020; hard anodize all surfaces per mil-a-8625, type iii, 0.0021 , 0.0029 inch thick except threads; flash hard anodize threads per mil-a-8625, typeiii, 0.0002 , 0.0004 inchthick