Strike Industries Cheek Riser for Dual Folding Adapter, Black, One Size, SI-FSA-CHEEKRISER

This gives you the ability to add an adjustable cheek rest for added comfort and accuracy with consistent cheek placement. This adjustable Cheek Riser gives you five (x5) position choices to pick the best use for each individual user; heights above top of bar: 10.25mm(0.40) low flat 16.55mm(0.