Ergo Grips AR-15/M16 M4 Receiver Castle Nut Price Guide
This page brings together current GunSpot inventory and historical marketplace data for the Ergo Grips AR-15/M16 M4 Receiver Castle Nut. Prices vary by condition, configuration, provenance, and included accessories.
Active listings1
Active auctions0
Historical sample0
How to read this price guide
These figures summarize historical GunSpot asking prices, not guaranteed completed-sale values or formal appraisals. Compare condition and configuration before estimating market value.
Current Ergo Grips AR-15/M16 M4 Receiver Castle Nut listings