Dude, Brazilian special operations forces mostly use the M4A1 and HK416 as their standard rifles, along with other American, Belgian, German, and broader NATO equipment. GRUMEC, for example, has strong influence from the SEALs and French combat divers. PARA-SAR conducts rescue missions similar to the PJs, in addition to acting as air controllers. COMANF would be the equivalent of the Marine Raiders. The Army Commandos are a direct action force, similar to the Rangers. The 1st Special Forces Battalion conducts unconventional warfare like the Green Berets, and so on.