GC_UPC Ruger 8537 AR-556 5.56x45mm NATO 16.10" 10+1 Black Hard Coat Anodized 6 Position Collapsible Stock Black Polymer Grip $708.33 8537 show more like this 17.99 Defense Depot GC_UPC Ruger 8537 AR-556 5.56x45mm NATO 16.10" 10+1 Black Hard Coat Anodized 6 Position Collapsible Stock Black Polymer Grip $715.16 8537 show more like this Calculated in Cart DACK Outdoors GC_UPC Ruger 8537 AR-556 5.56x45mm NATO 16.10" 10+1 Black Hard Coat Anodized 6 Position Collapsible Stock Black Polymer Grip $716.99 8537 show more like this Calculated in cart GunZoneDeals GC_UPC Ruger 8537 AR-556 5.56x45mm NATO 16.10" 10+1 Black Hard Coat Anodized 6 Position Collapsible Stock Black Polymer Grip $720.30 8537 show more like this FREE SHIPPING on orders over $200 Beebe Family Arms & Munitions GC_UPC AR-556 Free Float M-Lok Handguard 16in 10rd Black Rifle $740.88 691137 show more like this Free on Guns, $9.99 Accessories, $14.99 Ammo Tombstone Tactical GC_UPC Ruger 8537 AR-556 5.56x45mm NATO 10+1 16.10in Heavy Contour Barrel, Black Hard Coat Anodized 7075-T6 Aluminum Forgings, 6 Position Collapsible M4-Style Stock, Mil-Spec Buffer Tube, Optics Ready $744.72 8537 show more like this lat rate starting at $11.99 Hinterland Outfitters