Product Description
The Ergo 4821 .750 Low Profile Gas Block is designed to fit under the Ergo Modular and SuperLite Rail System, as well as most other manufacturer's free float handguards. FeaturesCNC machined 4140 chromoly steelChamfered edge, slip on fitFits under most free float handguardsIncludes (2) set screws for a secure attachmentAccepts standard gas tube roll-pins (roll-pin NOT included)