Built exclusively for Primary Arms, this Foxtrot Mike Products side charging 9mm AR pistol is packed full of features like a billet upper and lower receiver set compatible with Glock magazines and a blast diffuser that extends the 7โ€ barrel past the M-LOK handguard. The para style charging handle allows you to stay on target during magazine changes and charge your pistol without removing it from your shoulder. It is non-reciprocating, so you can keep your support arm fully extended on the rail without fear of causing a malfunction. Because of the simple blowback design, it is extremely rugged and reliable with full power ammunition. The Fm9 also features an M-LOK compatible free float handguard with picatinny top rail that is flush mounted to the flat top upper receiver. Housing the recoil buffer and spring is a smooth pistol length buffer tube. If you are looking for a Glock compatible 9mm AR-15 pistol.


  • Para-style left side charging handle
  • Non-reciprocating
  • 7โ€ barrel chambered in 9mm
  • Glock compatible magazine well
  • Enlarged magazine release
  • Blow back recoil mechanism
  • Smooth pistol length buffer tube
  • Patented Proprietary Last Round Bolt Hold Open (LRBHO)
  • Blast diffuser muzzle device
  • Mil-Spec AR-15 lower parts kit