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 :
Clamps to barrel with two fastening screws
,Precision machined to .750";"Replaces existing front sight/gas block,
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