ETS magazines are made from advanced polymers that provide extreme impact resistance so they wont crack or break when dropped. With superior temperature tolerances ETS magazines wont become brittle over time, even when exposed to harsh environments, chemicals, or extreme cold. The OMEGA line incorporates hardened steel feedlips and frame to provide seamless ammunition feeding.Features :30 Round CapacityHardened Steel Feedlips and FrameWeighs 50% Less than All-Steel MagazinesImpact ResistantBase Plates Interchangeable with ETS Line of 9mm Double Stack MagazinesMagazine Restrictions: The following states have magazine restrictions. Your order will not ship to those states if in violation of these laws and will be subject to cancellation and a 15% restocking fee. California - Limited to 10-round capacity. Connecticut - Limited to 10-round capacity. Colorado - Limited to a 15-round capacity. Delaware - Limited to 17-round capacity. Hawaii - Handguns limited to 10-round capacity Illinois (Cook Co, Aurora, Highland Park) - Pistol mags are limited to 10 rounds. Massachusetts - Limited to 10-round capacity. Maryland - Limited to 10-round capacity. New Jersey - Limited to 10-round capacity. New York - Limited to 10-round capacity. Road Island - Limited to 10-round capacity. Vermont - Handguns limited to 15-round capacity, Rifles limited to 10-round capacity. Washington DC - Limited to 10-round capacity. Washington - Limited to 10-round capacity.