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.
Features:
- CNC machined 4140 chromoly steel
- Black Nitride/Melonite Quench Polish Quench (QPQ) finish
- Chamfered edge, slip on fit
- Weighs 2oz
- Fits under most free float handguards
- USA made steel & Machined in the USA
- Internal Diameter 0.750
- Includes (2) set screws for a secure attachment
- Accepts standard gas tube roll-pins (roll‑pin NOT included)
- Weight 0.12 lbs
- Dimensions 20 x 1 x 5 in
