Aero Precision Gas Tube Pistol Length Melonited Anodized Black Pistol Length. These AR Gas Tubes by Aero Precision boast an extremely long service life for AR-15 or A-10 build while the anodized black finish eliminates accidental light reflection. For an enhanced gas tube choose the Aero Precision Gas Tube. Specifications for Aero Precision Melonite Gas Tube: Manufacturer: Aero Precision Color: Anodized Black Black Finish: Anodized Fabric/Material: Melonite Condition: New Country of Origin: USA Features of Aero Precision Melonite Gas Tube: Melonite Gas Tube for AR15 & AR10 rifles Roll pin included Pistol length 6.6875in Carbine length 9.8in Mid-Length 11.75in Rifle length 15.125in Package Contents: Aero Precision Melonite Gas Tube 29D-RGT-APGTLML Aero Precision APRH100280C: Gas Tube Pistol Length Melonited Anodized Black Pistol Length