The Spike\'s Tactical Stripped Lower Receiver, Model STLS015 Punisher, is a versatile Semi-Auto lower receiver compatible with multiple calibers. Distinguished by a sleek Black Finish, it also boasts an attractive custom punisher design graced with an engraved punisher logo.In contrast, the Spike\'s Tactical Stripped Lower Receiver Model STLS019 Spider offers the same Semi-Auto, multiple caliber compatibility. This model, too, is in a sharp Black Finish, featuring a unique custom spider design and a finely engraved spider.Kindly note, as per regulations, you must be 21 years old or above to initiate transfer of this firearm.