Set shooting position

[rute]

My SNPC traces, bullets, rockets and crossbolts spawn from it's feet. How do I change that position?

Shooting code:
[lua]
local schdShoot = ai_schedule.New( "Shoot Enemy" )
schdShoot:EngTask( "TASK_ANNOUNCE_ATTACK", 0 )
schdShoot:EngTask( "TASK_RANGE_ATTACK1", 0 )

self:StartSchedule( schdShoot )
[/lua]

EDIT: Fixed
[lua]
self:SetSaveValue("m_HackedGunPos", Vector(0,0,50))
[/lua]