Browning M2HB
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Model convert to GTAIV by cjisntgay

Install the model:

open sparkIV or openIV, browse to your GTAIV main folder/pc/models/cdimages/weapons.img, import w_ak47.wdr and w_ak47.wtd then save!

install weaponinfo.xml:  your GTAIV main folder/common/data

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THE information you have to replace in weaponinfo.xml, you'll find these words in your weaponinfo.xml
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<weapon type="AK47">
		<data slot="RIFLE" firetype="INSTANT_HIT" damagetype="BULLET" group="SMG" targetrange="55.0" weaponrange="65.0" clipsize="30" ammomax="600" timebetweenshots="66">
			<damage base="30" networkplayermod="2.0" networkpedmod="1.0"/>
			<physics force="75.0"/>
			<reload time="6066" fasttime="1166" crouchtime="2066"/>

			<aiming accuracy="0.5">
				<offset         x="0.16" y="1.0" z="0.55"/>
				<crouchedoffset x="0.1"  y="1.0" z="0.12"/>
				<reticule standing="0.6" ducked="0.5" scale="0.3"/>
			</aiming>

			<pickup regentime="480000" ammoonstreet="80"/>

			<controller>
				<rumble duration="90" intensity="0.1"/>
			</controller>

			<flags>
				<flag>GUN</flag>
				<flag>CAN_AIM</flag>
				<flag>CAN_FREE_AIM</flag>
				<flag>ANIM_RELOAD</flag>
				<flag>ANIM_CROUCH_FIRE</flag>
				<flag>2HANDED</flag>
			</flags>
		</data>

		<assets model="w_ak47">
			<anim group="gun@ak47">
				<rates firerate="1.2" blindfirerate="1.2"/>
			</anim>

			<effects>
				<muzzle fx="muz_machine"/>
				<shell fx="weap_ejected_rifle"/>
			</effects>
		</assets>
	</weapon>

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then copy and change to these words

<weapon type="AK47">
		<data slot="RIFLE" firetype="INSTANT_HIT" damagetype="BULLET" group="RIFLE_ASSAULT" targetrange="60.0" weaponrange="3800.0" clipsize="200" ammomax="600" timebetweenshots="66">
			<damage base="2585" networkplayermod="2.0" networkpedmod="1.0"/>
			<physics force="525.0"/>
			<reload time="2066" fasttime="1166" crouchtime="2066"/>

			<aiming accuracy="0.5">
				<offset x="0.16" y="1.0" z="0.55"/>
				<crouchedoffset x="0.1" y="1.0" z="0.12"/>
				<reticule standing="0.6" ducked="0.5" scale="0.3"/>
			</aiming>

			<pickup regentime="480000" ammoonstreet="80"/>

			<controller>
				<rumble duration="90" intensity="0.1"/>
			</controller>

			<flags>
				<flag>GUN</flag>
				<flag>CAN_AIM</flag>
				<flag>2HANDED</flag>
				<flag>ANIM_RELOAD</flag>
				<flag>CAN_FREE_AIM</flag>
				<flag>ANIM_CROUCH_FIRE</flag>
			        <flag>HIGHER_BREAK_FORCE</flag>
                        </flags>
		</data>

		<assets model="w_ak47">
			<anim group="gun@ak47">
				<rates firerate="1.5" blindfirerate="1.5"/>
			</anim>
			
                        <effects>                             
				<muzzle fx="muz_machine"/>                                
                                <shell fx="weap_ejected_rifle"/>
			</effects>
		</assets>
	</weapon>