Military organization
On a general level, the military during the Bahri dynasty can be divided into several aspects:
Mamluks: The core of both the political and military base, these slave soldiers were further divided into Khassaki (comparable to imperial guards), Royal Mamluks (Mamluks directly under the command of the Sultan) and regular Mamluks (usually assigned to local Amirs).
Al-Halqa: These primarily free born professional forces were also directly under the sultan's command.
Wafidiyya: Turks and Mongols that migrated to the dynasty's border after the Mongol invasion, typically given land grants in exchange for military service; they were well regarded forces.
Other levies: Primarily Bedouin tribes, but also on different occasions also different groups of Turkomans and other settled Arabs.
https://en.wikipedia.org/wiki/Bahri_Mamluks