TKB-011 (ТКБ-011), TKB-011M (ТКБ-011М) and TKB-011 2M (ТКБ-011 2М) were a Soviet bullpup assault rifles, capable of fully automatic fire, chambered for the 7.62×39mm round, developed by the small arms designer Nikolai M. Afanasyev from 1963 to 1965.The internals of the weapons were made of steel and the externals bakelite. These assault rifles and the TKB-022PM were the first to use a tunnel type ejection port, which is now used on the FN F2000.