Search results
Results From The WOW.Com Content Network
Graphene (/ ˈ ɡ r æ f iː n /) [1] is a carbon allotrope consisting of a single layer of atoms arranged in a honeycomb planar nanostructure. [2] [3] The name "graphene" is derived from "graphite" and the suffix -ene, indicating the presence of double bonds within the carbon structure.
The original SPR used an early PRI flip-up front sight with an elevation dial, which has since been discontinued. The Mk 12 MOD 0/H uses the current PRI flip-up front sight. The SPR/A, SPR/B, and Mk 12 MOD 1 use the KAC rail forend flip-up front sight, KAC part number 99051. The SPR and Mk 12 MOD 0/H use the ARMS #40 flip up rear sight.