Slate Grips are a drop in/screw on upgrade to any grip, rail or any in-spec MLOK compatible system. The thin profile and raised texture offer an enhanced gripping surface for the user. These panels boast durable steel hardware and extra MLOK lugs (over some similar designs) for increased durability and security. The grip material maintains the ability to withstand high temperatures, providing the user with insulation. Designed by military and competition shooters, Slate Grips will interface well with many of the popular hand stops, vertical grips, and angled grips available on the market today. SBI polymers are optimized for stippling, but we highly recommend BLACK polymers for stippling only due to polymer dye discoloration. SBI’s FDE is a "peanut-butter" brown, and ODG is a direct match for Magpul's coloration. Sometimes photography may show it in a skewed color depending on the studio lights used.Available in 1 slot, 2 slot, or 3 slot variety, Slate Grips are sold in packs of three (3). Material: fiber reinforced high-temp polymer. Length [1-Slot - 1.57in long - 2-Slot - 3.16in long - 3-Slot - 4.74in long]