Machined from: solid 7075 t6 aircraft grade aluminum. Finish: matte black only. Mounting hardware: clamps and torx wrench provided. Our hd cz 452 mount is available for 3/8" and 11mm dovetails. This mount also fits the 453, 455 and 511. Determine which dovetail you have by measuring across the top of the dovetail. If you measure 0.4"37" you have an 11mm dovetail. If you measure 0.5" you have a 3/8" dovetail. Both dovetails are available in 0 or 20 moa. Please see our faq page for further information on moa. Picatinny cross slots run the full length of the rail, which gives the shooter flexibility when mounting scope rings and other accessories. The cross slots are also machined the full width of the mount and gauged to mil-std 1913 specs maintaining tolerances of +/-.002". After machining; the mounts are tumbled and sand blasted. The aluminum mounts are type iii hard coat anodized for long lasting durability. The steel rails are mil spec parkerized for a durable rust resistant finish. Compatible with picatinny or weaver scope rings.