A method is used to manufacture a frame (410) of a curved surgical stapler. The method includes manufacturing a first portion (424) of the frame of the curved surgical stapler. The first portion includes a first curvilinear portion of an end effector and a first alignment feature. The method also includes manufacturing a second portion (426) of the frame of the curved surgical stapler separate from the first portion. The second portion includes a second alignment feature. The method also includes manufacturing a third portion (422) of the frame of the curved surgical stapler separate from either of the first or second portions. The third portion includes a C-shaped track (430). The method also includes aligning the first portion with the second portion by aligning the first and second alignment features. The method also includes coupling the first and second portions of the frame of the curved surgical stapler together.