Features: Proudly Designed and Made in USA Precision Machined from Aircraft Grade Aluminum with Matte Back Hard Coat Anodize 6.1 in. Extended Length with 14 Picatinny Rail Slots for Dot Sights, Rear Sights, and Flexible Positioning of Magnified Optics for Proper Eye Relief Adjustment Low Profile with See Thru Design for Use of Front Bead Sight Contoured Bottom Perfectly Fits Remington 870/1100 with Drilled and Tapped Receiver Includes Assembly Screws and Tools for Simple and Friendly Installation, No Gunsmith Required