I'd use a banana but I figure you guys probably know how long a BCG is...
Glock 17L with Raven Freya, Dueck Defense
Fixed Rear Sight and Green front fiber optic sigh post | MI
G3 Keymod | Gemtech "The One" Suppressor | BCG from AIM Surplus
Fixed Rear Sight and Green front fiber optic sigh post | MI G3 Keymod | Gemtech "The One" Suppressor | BCG from AIM Surplus