Machine to Machine (M2M) refers to the technology that allows the devices to communicate autonomously with other devices over the wired or wireless systems. Neither the contention based Medium Access Control (MAC) protocols nor the reservation based MAC protocols can provide a flexible, scalable solution for M2M networks that contain a large number of the devices. In this paper, a proposed hybrid MAC protocol for M2M network will be suggested which combines the main features of two different protocols. It composes of three main parts: Notification Period, Contention Period, and Transmission Period. Different devices contend on the transmission opportunities with the same contending probability during the Contention Period based on Non-persistent Carrier Sense Multiple Access (NP-CSMA) mechanism. During the transmission period, only the successful devices will reserve a time slots to transmit its data packet based on Time Division Multiple Access (TDMA) reservation based mechanism. Moreover, the proposed protocol performance can be measured in terms of three metrics: throughput, average delay time, and Packet Delivery Ratio. Extensive MATLAB programs are done to present a comparison between the Proposed Protocol with other conventional protocols.