KAK Derp Donkey 11.5-inch AR Pistol Build with Geissele ODG Upper and EOTech EXPS3

A first build assembled entirely by its owner from separately bought parts: a KAK Derp Donkey lower with the M4A1-style rocking-horse roll mark, cerakoted ODG to match a Geissele ODG upper and 10-inch Geissele rail. A Rosco 11.5-inch barrel runs a RifleSpeed adjustable gas block and a KAK K-SPEC down-vent carrier, with a Geissele SSA-E and Ultra Duty lower parts. An FDE EOTech EXPS3-0 with a Holosun HM3X magnifier, a Rearden R2S flash hider and a SilencerCo Omega 300 finish the pistol.