One of my many jobs was an armed guard for a small railroad.There was a device called a "torpedo".It was metal with 2 small metal tabs about 2" long.This was a warning device that was put on the track with tabs folded around the rail.The wheel of the locomotive running over it set it off.A few of the guys there were hardcore drunks.They wrapped 3 in a row inside the roundhouse as the enginer pulled the locomotive in he set them off sounding like bomb.He had a racing stripe in his shorts and the knuckelheads damn near pissed there pants laughing so hard.I grabbed one put it on the ground and dropped a 4X4 on it with rocks flying,almost put my fukin eye out.Outside it sounds like a 12ga..
Like that "Dissy" so much I had to have one.PSA upper,CHF barrel 1:7,Moe riflelenght handguard,Magpul everything else,BAD ambi-selector and a ACT trigger going in.Also Tac-Ops CH.