Dope Card? Level? Timer? Thumb Stop? IR Illum? Red Dot? Another Scope? Doesn't 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 in Area419's Ohio facility it's a well done section of picatinny and that's most of what there is to say. It is about 1.85a ^2 long (5 studs 4 slots) and can be mounted with a forward or rearward bias on either side of either ring.