My Shockwave wears 1 and it amplified my efficient range Using the gun out to 35 yards with Aguila mini slugs. This was one a 21-inch tall popper, so I could possibly make efficient hits out to 50 yards on a person-sized concentrate on. If an Influence Guns mistake triggers https://remington-870-14-inch-bar18824.digiblogbox.com/52137578/14-inch-870-barrel-an-overview