Since everyone wants the Capsule Gun IDs - here they are. As RedSpot(i think it was RedSpot) was saying, all the IDs will not work if you try to buy the Guns with the Gun adding method. Some of the Guns like the PPsh have multiple IDs, one for the Capsule Shop guns and some for the different timed versions of the gun (1day, 3day, 7day...).
Guns IDs:
PPsh: 794
Stg: 1311
P38: 291
L2A3: 799
Kar98k: 1810
Firefox: 1334
M2 Carbine: 1340
BumbleBee: 1312
Phyton: 308
Mad Galil: 1806
MP40: 811
M4 Chrome: 1344
Harimau: 825
Thompson: 839
Hawkeye: 1306
FN57: 295
Bizon Arachne: 842
Mosin: 1821
Sidewinder: 1367
FG 42: 1327
Leopard M16: 1386
Beretta M93Ra: 327
G36 Alligator: 1370
Zebra: 1918
Luger P-08: 322
Carpio: 1385
Seroja: 1372
SW1911: 314
SV98 Silver Arrow: 1917
Blue Skull: 847
G3A3 Nero: 1390
Desmodus: 969
Colt SAA: 341
MAC10: 357
TPG1_EPKO: 1929
AK47 Predator: 1377
VSS Katana: 1834
Pristis-Burst: 1582
Winchester: 374
Pristis: 1389
MG4KE: 1640
DON'T EVEN TRY TO ADD THEM BECAUSE IT WILL NOT WORK!
THE ONLY REASON WHY I MADE THIS THREAD IS TO SHOW YOU GUYS THAT YOU CANNOT ADD CAPSULE GUNS WITH THE GUN ADDING METHOD!