Systems for fixating a graft in a bone tunnel are provided. In general, the system includes a tissue fixation device (1800) having a delivery configuration and a deployed configuration, at least one graft retention loop (1808) coupled to the tissue fixation device, and a drill pin (700) having a sidewall (706) surrounding a cavity (704) at a proximal end (702) of the pin and at least one longitudinally oriented opening (708) in the sidewall in communication with the cavity, the cavity being configured to fully seat the tissue fixation device (1800). The drill pin (700) is configured to substantially contain therein the tissue fixation device when in the delivery configuration and to enable deployment of the tissue fixation device through the opening. Drill pins configured to contain a tissue fixation device are also provided.
