Buttplate, GearHeadWorks Replacement # BP-GHW-01 Buttplate, GearHeadWorks Replacement (BP-GHW-01) $78 -Replaces GearHeadWorks Tailhook brace -Fits JMAC, KGB, and other brace struts -Use on Rifles, Shotguns, SBR’s(registered short barreled rifle) –NOT A BRACE, ALL NFA RULES APPLY