Also, For additional snug shooting, the SP5 is supplied with an elastic “bungee” sling. The sling is well put in by snapping it onto the sling swivel components Found over the rear of the receiver. Using the sling will make firing the SP5 additional steady and cuts down tiredness. https://aguila-20-ga-ammo-2-3-4-176218.blogdon.net/5-easy-facts-about-promag-dpms-lr-308-drum-magazine-described-31432487