An end effector includes a first jaw, a second jaw, and a cartridge. The first cartridge includes a sled and the second jaw includes an anvil. The first and second jaws are moveable relative to one another. The cartridge is disposed on the first jaw and has a plurality of staples. The sled is configured to engage each staple to the plurality of staples to eject the plurality of staples from the cartridge as the sled is longitudinally translated through the cartridge. A loading unit is also disclosed including an elongated body and an end effector that is articulable relative to the end effector. The end effector and the elongated body of the loading unit are configured to pass or fit through a 5 mm opening.