Wheeler Engineering Delta Series AR 15 Upper Vise Block Clamp 190 is a professional grade rechargeable is a professional grade rechargeable flashlight perfect for law enforcement 0 Compact 9 40 4in Made of high pressure solvent resistant polymer material Does not work with left handed uppers that have a dust cover that flips upward Fits left and right hand Mil Spec A2 Upper This Wheeler Engineering Delta Series AR 15 Upper Receiver Vise Block is a vital tool that enables the user to securely clamp an upper receiver into a bench vise without fear of crushing twisting or damaging it in order to perform critical assembly disassembly or maintenance tasks Manufactured from durable solvent resistant black polymer the clamp is compatible with A2 Uppers with an Integral Carry Handle as well as A3 Flattop Upper Receivers