Shotguns
This listing is for the following shotguns: Remington 870 Remington M11-87 Remington M1100 Stakeout (name used in Call of Duty 7: Black Ops) They are pretty much the same, and several parts are used for all three shotguns, this is why we list all three as one model here. Differences: The M1100 can hold 4+1 rounds (four in tube, one loaded) for the civil version and 10+1 rounds for the tactical (police etc) version. Games: Battlefield 2 lists the M11-87 Battlefield Bad Company 2 names it 870 MCS for "Modular Combat Shotgun".
Benelli M4 Super 90 Shotgun Benelli M4 Super 90 ShotgunDifference to M3: the M4 can fire in full automatic mode, the M3 is only single fire.Battlefield 3: M1014 (http://en.wikipedia.org/wiki/M1014)Couterstrike:Source:This shotgun is named YG1265, bind "buy weapon_xm1014"
The Mossberg 500 is available in a lot different sizes.In 3D-shooter games you often see the shortest version (barrel length 35cm), but there are also normal version with barrels up to 70cm length.Beside the typical 12 gauge ammo you can buy this shotgun also for 20 gauge caliber ammunition.
The Neostead 2000 was designed in South Africa. It is a pump action shotgun, but it has a major difference: to reload, you push the barrel away from you and then pull it back, exactly oposite to other shotguns.
Norinco 982 shotgunThe Norinco 982 is a copy of the Remington 870 shotgun.http://www.calguns.net/calgunforum/showthread.php?p=1753496
The Saiga-12 exists in 3 versions:Saiga-12SSaiga-12KSaiga-12S EXP-01Main differences are length (The S12K has a foldable stock) and different clip sizes.There is also a drum magazine availale which can hold 20 rounds instead of the normal 5-10 rounds.
SPAS-12 Combat Shotgun (Franchi) The SPAS-12 has no external magazine (like the SPAS-15), the shells are placed directly in the barrel. Both shotguns (SPAS-12 and SPAS-15) have a selector where you can choose, if you want to fire in semi-automatic mode or in manual pump action mode. Semi-automatic means, you just pull the trigger and the shotgun reloads automatically. In the pump action mode, you shoot and then need to pull the handle back and forth to load a new shell. In games and movies the people mostly use pump action, but in real life, this is only used for the SPAS-12 and SPAS-15 when firing tear gas or non lethal ammunition.
The main difference between the SPAS-12 and SPAS-15 is the magazine: the SPAS-15 uses a box baxazine, the SPAS-12 has the shells in the barrel. The SPAS-15 is based on the SPAS-12, both can be fired semi automatic or as pump action. Pump action is used when firing non lethal ammo like tear gas etc.