From The TimeSplitters Wiki

Brick
Ammo	20
Fire Rate bullets per sec/cartridge time	1
Reload Time	N/A
Damage (per Single Shot) Head/Body/Leg	5%
Type	Other
Zoom	No
Primary Fire	Throws Brick
Secondary Fire	Throws Brick Further
Games	All

The Brick has appeared in every TimeSplitters game so far as an unlockable weapon. It has a short range, and weak attack power. The secondary fire shoots at a higher angle. When aimed at a wall it will richochet and hit the player, causing ironically large self-damage.