Area 419 Side-Mount Picatinny Accessory Rail for Scope Rings and Mounts Black. Level? Timer? Thumb Stop? IR Illum? Red Dot? Another Scope? Doesnt matter. This short picatinny section is made to attach to either side of your Area 419 Match Scope Rings and attach whatever your heart desires. Milled from billet 7075 aluminum its a well done section of picatinny and thats most of what there is to say. It is about 1.85in long (5 studs 4 slots) and can be mounted with a forward or rearward bias on either side of either ring. Specifications for Area 419 Side-Mount Picatinny Accessory Rail for Scope Rings and Mounts: Manufacturer: Area 419 Fabric/Material: 7075 Aluminum Length: 1.85 in Color: Black Country of Origin: USA Package Contents: Area 419 Side-Mount Picatinny Accessory Rail for Scope Rings and Mounts Area 419 419-MatchRing-PIC: Side-Mount Picatinny Accessory Rail for Scope Rings and Mounts Black