SOP-MASTER Spec Ops Brand Master Blaster Shotgun Sling$30.00$28.99SPEC OPS BRAND MASTER BLASTER - Finally a solid shotgun sling design! The Master Blaster is a true shotgun fighting sling - it has 6" of spring loaded travel allowing for greater shooting stability and weapon-strike capability. The Master Blaster is built to last because it's made with the toughest nylon webbing and hardware on the market; industrial grade stitching is used throughout.