FS8 Nose Cone- Forward Stabilizing 8-Sided Nose Cone- Constructed of Military Type III Anodized, 6061 T6 Aluminum- Anchors into any Corner, Door Jam, Fence, Wood, Concrete, Aluminum Siding, etc for Increased Stability & Accuracy- Virtually Indestructible- Manufactured in the USA- Limited Lifetime WarrantyFits: ATI"s Improved AR-15 Free Float ForendsMeasurements: Weight | 1.07oz / 30g