H&K MP5A3 submachine gun

The MP-5 was the standard issue rifle used by the SGC for the first four years of the program. Jack O'Neill and Samantha Carter also used it as their standard rifle during those years, whil Daniel Jackson used a Berreta 9M, adn Teal'c employed the staff weapon and zat. Though primitive compared to Goa'uld weapons, they were more than capable of piercing Jaffa armor, after a few shots. It was replaced by the P-90 after the mission to P3X-888