The si jcomp v2 is the classic japanese assault rifle type 89 compensator re-engineered and updated.It has an increased muzzle rise compensation, and is compatible with oppressor and ferfrans concussion reduction devices.The j-comp concept comes from the type 89 japanese assault rifle used by the japan self-defense forces, the japan coast guard's special security team units, and the special assault team.This model is compatible with your ak rifle.Finish: BlackType: CompensatorModel: JCompSize: 7.62mmMaterial: SteelThread Pattern: 14x1 LH