VKTR Industries Stripped Upper Receiver. This 15-slot forged upper receiver incorporates a thermal fit design with wide lugs to ensure a snug and precise fit across various configurations. Its robust construction and attention to detail make it a reliable and durable choice for both enthusiasts and professional builders seeking superior performance and tight tolerances. Specifications for VKTR Industries Stripped Upper Receiver: Manufacturer: VKTR Industries Color: Black Features of VKTR Industries Stripped Upper Receiver: Precision machined from 7075-T6 Aluminum 15-slot forged upper receiver for enhanced durability Thermal fit with wide lugs for a secure fit Compatible with a range of AR-15 platforms Designed for optimal reliability and performance Package Contents: VKTR Industries Stripped Upper Receiver