DoubleStar AR-UL Ultra Lite Stock Assembly with Black Foam and .5in RP. 5in RP. DoubleStar crafted these AR15 Stocks with an Ace's original soft foam overtube that makes for the perfect cheek weld to comfortably stabilize your aim. For optimal protection of your Doublestar Ultra Lite Stock (AR-UL) Assembly the weakest point of the receiver extension tube is reinforced by a billet machined gusset. A precision machined aluminum butt clamps directly to your RET to provide a built-in sling mount. Get all the benefits of a sturdy AR stock without the weight that comes with it with this Doublestar AR-UL Tactical Stock Assembly. Specifications for DoubleStar AR-UL Ultra Lite Stock Assembly: Manufacturer: DoubleStar Color: Black Gun Model: AR-15 Gun Type: Rifle Weight: 1.375 lb Length: 10 in Additional Features: Standard Buffer Tube Condition: New Finish: Anodized Fabric/Material: 7075-T6 Aluminum Package Contents: DoubleStar AR-UL Ultra Lite Stock Assembly What firearm models does the manufacturer say DoubleStar AR-UL Ultra Lite Stock Assembly is compatible with? The manufacturer suggests that DoubleStar AR-UL Ultra Lite Stock Assembly is compatible with AR-15DoubleStar A140A: AR-UL Ultra Lite Stock Assembly with Black Foam and .5in RP