Ergo 4332BK M-Lok WedgeLok Slot Cover Mossberg Textured Black Rubber 4 Per Pack 43324PKBK 4332-4PK-BK

Rail covers fill in M-LOK slots to add additional grip. Comes in a handy 4-pack. Chemical and heat resistant with a positive non-slip aggressive texture.  Very low profile.

• 6 1/4″ long and 5/8″ wide
• Covers 4 M-LOK slots
• Comes in 8 colors including clear
• Patent Numbers US 9599423 B2 and US 9441905 B2