Home / AR Upper Parts / AAT Black Hole Mid Length Gas TubeAAT Black Hole Mid Length Gas TubePRODUCT DESCRIPTIONMid length gas tube.$21.99 AAT Black Hole Mid Length Gas Tube quantity Add to cart Category: AR Upper Parts Tag: Gas Tube Product ID: 7416 Specifications Related products AAT anodized dust cover $31.99 View Product AAT 45° IRON SIGHTS $99.99 View Product AAT Flip up sights $99.99 View Product Tin Coated carbine length gas tube $69.99 View Product