Not too much, not too little, but just right! - Specter Gear 6 Round Shotshell Loop Enhanced, Universal Fit, SOP 3 Point Sling

This Specter sling is very well-made, multi-adjustable and sized perfectly for a tactical shotgun; mine's a Mossberg 500. The hardware's sturdy and the 1.5" sling width is very comfortable. The 6-round shotshell loops hold enough ammo to keep you in action: Less bulky, easier to manage and much lighter than higher capacity slings = just right.