ERGO 7-Slot Low-Pro Ladder Rail Cover 3 Pack OD Green. The Ergo Low Pro Rail Cover protects rails from damage and protects shooters from rail edges; it even prevents damage to gear and clothing that comes in contact with the rail edges. These Rail Covers can be easily trimmed for custom fitting. No need to have a rail cover that doesn't even fit; with this you can make it fit. Stop messing around and get the Ergo Grip Low-Pro Rail Cover now Specifications for ERGO 7-Slot Low-Pro Ladder Rail Cover: Manufacturer: ERGO Quantity: 3 Gun Model: AR-15 Features of ERGO 7-Slot Low-Pro Ladder Rail Cover Clip directly onto Picatinny rail configurations on handguards Covers 7 slot Package Contents: ERGO 7-Slot Low-Pro Ladder Rail Cover What firearm models does the manufacturer say ERGO 7-Slot Low-Pro Ladder Rail Cover is compatible with? The manufacturer suggests that ERGO 7-Slot Low-Pro Ladder Rail Cover is compatible with AR-15ERGO 4378-3PK-OD: 7-Slot Low-Pro Ladder Rail Cover 3 Pack OD Green