GFGear is running a limited time 20% off Halloween sale on our drop in side charging handles, normally priced at 149.00 Use the link below to take advantage of holiday sale pricing. Amazon.com: GFGear Side Charging Handle Drop In no gunsmithing required .223 .556 ar15 ar-15: Sports & Outdoors Specs -Convert any AR-15 to a side charging rifle for a fraction of the cost of a side charger receiver or bolt knob upgrade. -Ultra rugged 7075 billet and steel construction. -Mil spec hard coat type 3 anodizing. -Machine engraved GFG logo *will never wear off*. -5 year manufacturer warranty.