The Diamondhead Low-Profile Gas Block replaces an existing fixed front sight when installing a Diamondhead VRS X-556 or VRS T-556 hand guard. The low-profile gas block installs quickly with two fastening screws. It is precision bored to 0.750" diameter and manufactured from Parkerized steel.
Features :
Features :
- Clamps to barrel with two fastening screws
- Precision machined to .750”
- Replaces existing front sight/gas block