You got it chief, as for now this is the list of firearms;

Name of the gun / spawnitem ID name:

Assault rifles
AK47 / AK47gun
AKM / AKMgun
AKS-74U / AKS74Ugun
AUG A3 / AUGA3gun
9A 91 / 9A91gun
BR18 / BR18gun
Grossfuss Sturmgewehr / Grossfussgun
M16 / M16gun
HK416 / HK416gun
HKG56 / HKG56gun
Steyr AUG / SteyrAUGgun
STG 44 / STG44gun
AS VAL / ASVALgun
AR 56 / AR56gun
Charlton Rifle / Charltongun
CETME L / CETMELgun

Battle Rifles
AK12 / AK12gun
AR10 / AR10gun
FG42 / FG42gun
FN FAL / FNFALgun
G3 / G3gun
HK417/ HK417gun
SCAR H / SCARHgun
SIG MCX / SIGMCXgun

Machine Guns
M60 / M60gun
M1918 BAR / M1918gun
K3 / K3gun
FN Minimi / FNgun
M249 / M249gun
MG42 / MG42gun
IMI Negev / Negevgun
PKM / PKMgun
RPD / RPDgun
SS77 / SS77gun
Lewis / Lewisgun
HK23 / HK23gun
PFR 'Liberator' / PFRgun
Bren machine gun / Brengun

Shotguns
Benelli M4 / BenelliM4gun
SPAS-12 / SPAS12gun
Ithaca 37 / Ithaca37gun
Double-Barreled Shotgun / doublebarreledshotgun
Sawn-off Double-Barreled Shotgun / doublebarreledsawnoffshotgun
KS-23 / KS23gun
KSG-12 / KSG12gun
Striker / Strikergun
Saiga 12 / Saiga12gun
Arbiter Shotgun / Arbitergun

Sidearms
M1911 Pistol / M1911gun
Astra 400 Pistol / Astra400gun
Bergmann M1921 Pistol / BergmannM1921gun
AutoMag V Pistol / AutomagVgun
Luger P08 Pistol / LugerP08gun
Beretta 92 Pistol / Beretta92gun
Desert Eagle / Deserteaglegun
Browning Hi-Power Pistol / Browninghipowergun

Sniper Rifles and Marksman Rifles
Anzio Sniper Rifle / Anzio20mmgun
AS 50 / AS50gun
AWM / AWMgun
Barret M82 / BarretM82gun
De lisle Carbine / Delislegun
K14 / K14gun
M1 carbine / M1carbinegun
M1 Garand / M1garandgun
M1941 Johnson Rifle / M1941Jgun
Marlin 1894 / Marlingun
Winchester 1873 / Winchestergun
VSS Vintorez / VSSvintorezgun
SVD Dragunov / SVDdragunovgun
RSM Mini / RSMMinigun
M1917 Enfield Rifle / M1917enfieldgun

Submachine guns
Kriss Vector / Krissgun
MP34 / MP34gun
M3 Grease Gun / M3gun
MP5 / MP5gun
MP7 / MP7gun
MP40 / MP40gun
P90 / P90gun
PP19 Bizon / PP19gun
PPSh 41 / PPShgun
Sten / Stengun
UMP45 /UMP45gun
MAC-10 / MAC10gun
MP5K / MP5Kgun


For magazines it's usually the same item ID but instead of 'gun' it's 'magazine' in the name

Thanks mate!

legendary developer actually releases the list for the items unlike others

makarov

Thompson