This Complete Palmetto State Armory EPT Pistol lower is fully assembled and ready for your Pistol Upper! Machined from Aluminum Forgings 7075-T6 Hardcoat Anodizing: MIL-A-8625F, Type III, Class 2 6061 Receiver Extension PSA Grip in Black Standard Carbine Buffer Enhanced Polished Trigger & Hammer Caliber: Multi This item contains parts that are not California compliant and as such may be illegal to import into the state of California. We comply with all local, state, and federal laws. Please be aware of your state and local laws before ordering.