	<weapon type="PISTOL">
		<data slot="HANDGUN" firetype="INSTANT_HIT" damagetype="BULLET" group="PISTOL_SMALL" targetrange="60.0" weaponrange="70.0" lipsize="33" ammomax="1200" timebetweenshots="333">
 	<damage base="20" networkplayermod="2.5" networkpedmod="1.25"/>
 	<physics force="50.0"/>
 	<reload time="2000" fasttime="2000" crouchtime="2000"/>

	  <aiming accuracy="1.0" accuracyTime="1500.0">
	   <offset         x="0.15" y="1.0" z="0.55"/>
	   <crouchedoffset x="0.2"  y="1.0" z="0.05"/>
	   <reticule standing="0.65" ducked="0.55" scale="0.3"/>
 	</aiming>

 	<pickup regentime="120000" ammoonstreet="30"/>

	  <controller>
	       <rumble duration="100" intensity="0.02"/>
	  </controller>

 	<flags>
		    <flag>GUN</flag>
		   <flag>CAN_AIM</flag>
		   <flag>CAN_FREE_AIM</flag>
		   <flag>ANIM_RELOAD</flag>
		    <flag>ANIM_CROUCH_FIRE</flag>
 	</flags>
	 </data>

	<assets model="w_glock">
	 	<anim group="gun@handgun" meleegroup1="firearm_core">
		       <rates firerate="3.8" blindfirerate="3.8"/>
	     </anim>

		     <effects>
			   <muzzle fx="muz_pistol_small"/>
			<shell fx="weap_ejected_pistol"/>
		</effects>
		 </assets>
	</weapon>

Credit goes to CORE.MAX2010 for Glock 18C weapon mod in gtagaming.com and gta4-mods.com
Link: http://www.gta4-mods.com/weapons/glock-18-akimbo--options-updated-f13906