BMW 51717134392 Genuine OEM Lower Deflector Screw for sale online

This Genuine OEM BMW 51717134392 Lower Deflector Screw is a factory-spec replacement part designed for shooters and builders who demand exact OEM tolerances in their firearm accessory setups. Whether you’re restoring a rifle, assembling a custom lower, or replacing worn hardware on a competition or home defense platform, this screw provides the reliable fitment you expect from genuine BMW engineering. Key specs include OEM-grade steel construction for durability and thread compatibility with factory lower deflector mounting points. No modifications or guesswork required—just direct drop-in installation. Ideal for target shooters, hunters, and collectors maintaining OEM-correct builds. This part ships to all U.S. states where firearm components are legal. No FFL transfer is needed for this non-serialized hardware. Order now for fast domestic shipping and get your build back to the range or safe with genuine factory parts.