Description
Standard Super Gas Block Nitride – The bore of the SGB is machined to closely fit around .750″ diameter mounting bosses found on most M4 Carbines and AR-15 rifles.
- .750″
- Fits AR-15 Barrels
- For Builds or Upgrade
- Roll Pin for securing included
- Gas tube roll pin included
- 2 Set screws included
- 17-4 Hardened Steel
