Lara has a huge arsenal of weapons (thats "arsenal") and here's a full list!
Other Guns
The Desert Eagle is my all time favorite TR Gun and it appears in TR3 and C. It fires pretty fast and takes about two shots to kill almost everything! In Tomb Raider 3 (pictured) you need to conserve Desert Eagle ammo for use against the final boss, Dr Willard, but he takes a helluva lot more than 2 shots!