Samson 040611401 Picatinny Side Folding Stock Adapter Black AnodizedFor any 1913 railed receiver to MCX MPX style stock. The Samson Picatinny Side Folding Stock Adapter is a robust and versatile solution for shooters seeking superior adaptability and precision. Designed to seamlessly integrate with a variety of platforms, this stock adapter ensures a secure and stable attachment. Engineered to fit perfectly with 1913 Picatinny railed receivers, providing a solid and reliable connection for your stock. The folding