JL Billet Force Alignment AK Rail Long Black. The design features a unique interlocking system to force the top rail into a repeatable position suitable for mounting optics. This patented design eliminates the need for barrel clamps or direct mounting optics to gas tubes. Installs easily quickly and boasting excellent heat dissipation and repeatability. This rail will fit most stamped AK receivers as is. 1913 Picatinny top rail M-lok Slots at 36 and 9'oclock positions Weight 6061 T6 aluminum Note As with all AKs some fitment may be required Specifications for JL Billet Force Alignment AK Rail: Manufacturer: JL Billet Color: Black Fabric/Material: 6061-T6 Aluminum Gun Make: Kalashnikov Gun Rail: Picatinny Weight: 1 lb Included Accessories: Standard Condition: New Mount Type: M-LOK Country of Origin: USA Gun Type: Rifle Quantity: 1 Features of JL Billet Force Alignment AK Rail TBD Package Contents: JL Billet Force Alignment AK Rail JL Billet JLB-FA-AKR-L-A: Force Alignment AK Rail Long Black