Converts 9mm AR-15 32 round magazine to 10 rounds.

This block will work with 9mm AR-15 magazines. It was designed for the C-products and ASC magazines, but may work with other similar magazines. It replaces the lower floor plate. The spring can also be epoxied to the block which allows for disassembly. Can be cut down to fit other pistol caliber magazines. Will not fit UZI magazines but we do offer an UZI block.