JL Billet MBS Adjustable Cheek Riser Black. Sits approx .375" above the tube cover and gives the shooter .5" of travel up/down and left/right tilt. All mounting harware included. Specifications for JL Billet MBS Adjustable Cheek Riser: Manufacturer: JL Billet Color: Black Condition: New Weight: 0.5 lb Country of Origin: USA Features of JL Billet MBS Adjustable Cheek Riser JL Billet MBS-AR (Modular Billet Stock) all aluminum fully modular design for AR15 platform Package Contents: JL Billet MBS Adjustable Cheek Riser JL Billet JLB-MBS-CHK: MBS Adjustable Cheek Riser Black