At 30:30 when Daryl is helping Rick to his feet after Tomas threw a walker at him, you can clearly see that there is no blade affixed to Rick's blade handle.
When the men are getting ready to clear out the walkers from the cell block assigned to the prisoners, Tomas asks why he needs a crowbar when he has a gun. Daryl explains that noise attracts them and riles them up. Tomas already knows that fact - earlier Oscar tells T-Dog that they didn't try to break out because "one peep in here, then those freaks will be lined up outside the door growling, trying to get in" .