A South American homemade "one-shot" shotgun (a.k.a. Hechiza), frequently used by the Mapuches (indigenous inhabitants) in the south of Chile in their recent battles against the government. The ammo is allocated in the smaller front tube, and is then pushed inside the rear bigger tube, where at the end is velded a nail, so as the ammo hits the nail it ignites the primer. Total cost for this weapon: five dollars.
TASER XREP — Extended Range Electro-Muscular Projectile shotgun shell. XREP projectiles fire out of a standard 12-gauge shotgun, deploying three fins for stability while they fly toward the target. Should incapacitate victim for 20 seconds.