- 6 1/4″ long and 5/8″ wide
- Covers 4 M-LOK® Compatible slots
- M-LOK® Patent https://magpul.com/intellectual-property
- Patent Numbers US 9,599,423 B2 and US 9,441,905 B2
ERGO AIR MODULAR WEDGELOK® RAIL COVERS – 4 PACK
Rail covers fill in M-LOK® compatible 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.