The Troy AK47 Rail Top provides a Picatinny rail to mount optics and accessories on your AK47. The low profile of the rail allows lower 1/3 co-witness with some optics. The Railed Gas Tube will work with factory handguards, independent of the Short and Long Bottom Rails. The Troy AK47 Rail Top will fit all (stamped and milled receiver) AK rifles with a standard length gas tube. Length is adjustable for variation between rifle manufacturers. May not fit all AK variants, please contact Troy if unsure of fit. Machined from hardened aircraft aluminum with a Mil-Spec hardcoat anodized finish.