F JMac Customs GFH KeyMount - KeyMicro Muzzle Device, 1/2-28 Thread, Black, GFH-28S-KM $98.96 GFH28SKM - Dvor F Jmac Customs G36 Flash Hider 28s Keymount (Keymicro) $98.96 GFH-28S-KM - $12.50 Brownells