Grip: Nothing but decorational. Attaches to barrel.
Bayonet: Not really useful, but it stabs. Attaches to barrel.
Holographic Sight: Slightly increases accuracy. Attaches to top.
Semi auto Converter; Converts fully-automatic guns into semi-automatic ones. Attaches to barrel.
Full auto Converter: Converts semi-automatic guns into fully-automatic ones. Attaches to barrel.
Implosive Rounds: Implosive Rounds - Same as Explosive Rounds, but drags objects towards and doesnt cause any damage. Attaches to barrel.
Napalm Explosive Rounds: Same as Explosive Rounds, but also sets things on fire. Attaches to barrel.
Shockwave: Creates a powerful shockwave on bullet hit. Attaches to barrel.
Disassembler: Converts gun into mobile disassembler. Attaches to barrel.
EMP: Converts gun rounds to be filled with EMP. Attaches to barrel.
Gravipull: Pulls objects towards. Attaches to barrel.
Gravipush: Pushes objects away. Attaches to barrel.
Energizer: Converts gun rounds into energy packed "rods" that have same effect as Energy Sword, while also sacrificing some of the gun's accuracy. Attaches to barrel.
Incinerator: Makes bullets extremly heated, guaranteed to set object on fire. Attaches to barrel.
Gracializer: Makes bullets extremly cold, causing things hit by them slowly freeze. Attaches to barrel.
Shredder: Makes bullets extremly sharp and filled with acid, giving a slim chance of dismemberment, while also making victim slowly die from acid dose. Attaches to barrel.