Spigot Filler / Mag Spacer: This block mounts in the T-channel of the Whiskey-3, X-ray, or TRG-22/42 chassis. It acts as a filler block for the hole at the front of the chassis in case you don't want the open hole there.
Fits: All Whiskey-3 Chassis, all X-ray Chassis, TRG-22/42, all Bravo Chassis.
Restrictions: Requires removal of forend to install.
Made by KRG. Material: 6061 Al and stainless steel fasteners