EBR BUTTSTOCK EXTENSION KIT MODEL: M14BEK The M14BEK is a 1" buttstock extension kit that is specifically designed for use on MOD-0 style M1/M14 & M1 GARAND SAGE EBR Chassis Stock Systems. Includes mounting hardware. Increases Length of Pull by 1" Machined from billet aircraft grade aluminum Mil-Spec hard anodized Made in the U.S.A.