Embodiments of the disclosure relate to a fastener driver. The fastener driver includes a cylinder housing, a storage chamber disposed within the cylinder housing in which the storage chamber is configured to hold a pressurized gas, a piston sleeve disposed within the storage chamber, a piston configured to translate linearly within the piston sleeve, and a driver blade attached to the piston such that movement of the piston causes movement of the driver blade to drive a fastener into a workpiece. The piston sleeve includes an outer layer defining a cylindrical tube and a collar. An interior of the collar is reinforced with a composite component comprising a thermoplastic polymer matrix filled with long fibers.