M-LOK Rail Cover Gray
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B5 Systems
Overview
The B5 Systems M-LOK Rail Cover in Gray is designed to enhance the grip and comfort of your AR-15 handguard while providing a sleek aesthetic. Made from durable polymer, this rail cover features an M-LOK mounting interface, ensuring a secure attachment to your handguard without adding unnecessary bulk. This product is often found in builds that prioritize a lightweight setup while maintaining functionality and a modern look.
Specifications
Price and stock
Availability is good for the B5 Systems M-LOK Rail Cover Gray: it was in stock at one retailer or another nearly every day in August 2026, and today 5 of the 6 retailers we track have it in stock. It dipped to $14.39 at Optics Planet for a stretch in August 2026, well under its usual $17.10, so sales do come around. Buying today, the lowest price is $17.10 at Brownells, above August's low of $14.39, so a better deal may come back.
Prices checked · refreshed daily across 31 retailers
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