M249 Machine Gun exploded view
A - Barrel Assembly B - Rear Sight Assembly C - Cover and Feed mechanism Assembly D - Feed Pawl Assembly E - Cocking Hand Assembly F - Butt stock and Shoulder Assembly G - Piston Assembly H - Bolt Assembly I - Slide Assembly J - Operating Rod Assembly K - Receiver Assembly L - Trigger Mechanism Assembly M - Hand Guard Assembly N - Bipod Machine Gun O - Gas Cylinder Assembly
M249 Machine Gun
M249 5.56 mm Machine Gun