The M1813 Pulse Rifle was a high powered assault rifle produced and used during the First Contact War and during the Geth Invasion. It was best known for being easy to clean on the field as well as having a very fast fire rate. For this it was used by many PMCs and Special Forces. However, the M1813 had quite a large amount of recoil and was very expensive. It took practice to use but was very effective when used correctly.