Smooth SCS Clamps Made from 6061 T6 Aluminim Anodixed Coloration 4 bolt SCS Compression System Laser Logos Made in the USA MSRP 64.95 Grenade Clamps Made from 6061 T6 Aluminim Anodixed Coloration 4 bolt SCS Compression System Laser Logos Made in the USA MSRP 64.95