Magpul Industries Cheek Riser For CTR/MOE Non-AR-15/M4 Application, Gray Md: MAG327-GRY Clip on cheek riser for the MOE and CTR stocks. Raises cheek weld 3/4 inch in height. This riser is for use onNon AR15/M4 applications as the riser will interfere with charging handle function. Originally designed for M14 carbine stock conversions.