Tacfire's clamp on low profile gas block is cnc machined from steel with a erosion resistant parkerized finish.It replaces the an existing a2 front sight and is compatible with 5.56/223 rifle with.705" barrel diameter.A roll pin, screw set and hex wrench.This model has a black finish.
Finish: Black Parkerized Type: Gas Block Model: Clamp On Dimensions: .750" Material: Steel
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