AR .223, 5.56 and .308 Black Nitride Gas Tube With Roll Pin - Rifle Length 15.125in • Precision Machined from Black

• Precision Machined from Black Steel

3" Buffer Tube

Value Eye Relief Parallax (Yds) Battery Diopter range 6

SOPMOD style

Compact (2

AR .223, 5.56 and .308 Black Nitride Gas Tube With Roll Pin - Rifle Length 15.125in • Precision Machined from BlackAR . 223, 5. 56 and . 308 Black Nitride Gas Tube With Roll Pin Rifle Length 15. 125" SKU GTN04 Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case hardened surface. Nitride is a not a coating , but a metal treatment which increases surface hardness, corrosion resistance, with no heat degradation. Correct dimensions and bends . Easy install. Comes with roll pin.