Replacement Large Diameter Barrel Nut with Hardware

Replacement Large Diameter Barrel Nut for your ERGO Modular Free Float Rail System. Comes with replacement hardware for installation.

• Fits:
  • ERGO KEYMOD MODULAR FREE FLOAT RAIL SYSTEM (SKU 4817)
  • ERGO M-LOK® COMPATIBLE MODULAR FREE FLOAT RAIL SYSTEM (SKU 4818)

A barrel nut is included with your Free Float Rail System, this is a replacement barrel nut.

Does not fit small diameter ERGO SUPERLITE™ Series Rail Systems. If you own a SUPERLITE™ Series, please click here for the correct replacement barrel nut.

Important: Only fits the current generation of handguards that have the ERGO logo on the sides of the Rail System. If your handguard says ERGO GRIP on the side, these will not work with them. Please contact us for replacement parts.