The Repulsor is a directed-energy submachine gun that was added to Call of Duty: Advanced Warfare on November 18, 2015 for Xbox One, and December 18, 2015 for PC and PlayStation 4. The weapon can be obtained through Supply Drops or Advanced Supply Drops. Being a directed energy weapon, it has no penetration, unlike other submachine guns.
The Repulsor does have a few good variants. The Repulsor - Supersonic is probably the best variant. It's almost a copy and paste of one of the best guns in the game, the ASM1 - Speakeasy. It increases your fire rate to a very fast, 1016 RPM, while decreasing your long range damage to 16. This will make long range kills a 7-shot kill which is fairly minimal.
Another good variant to use is the Repulsor - Royalty. It bumps up your minimum range to 525 and your maximum range to 1225. It does decrease your ADS time by 10% and your hipspread by 10% but they can both easily be countered by the quickdraw and/or the laser sight attachment.
The Repulsor - Hypershock increases your starting ammo to 35+140 but decreases your ADS time by 10%. This could be a bonus variant if you equip the quickdraw attachment otherwise, this variant wouldn't be that good. One variant that is questionable to use is the Repulsor - Deadstrike. It decreases both the hipspread and the view kick by 10% but, it also decreases your mag capacity to 28 rounds and your fire rate to 674 RPM. This variant makes it almost essential to use extended mags for this to be a viable gun but overall, there are better variants to use.
Supply Drop Variants
|Hypershock||Enlisted||Starting ammo: 35+140||ADS Time +10%|
View Kick −10%
|Mag Capacity: 28 rounds
Fire Rate: 674 RPM
|Royalty||Elite||Range: 525-1408.75||ADS Time +10%
|Supersonic||Legendary||Fire Rate: 1016 RPM||Damage: 35-22-16||Integrated Extended Mags|