TKB-09 No. 1 was a Soviet experimental fully automatic bullpup

Bullpup

Bullpups are firearm configurations in which the action is located behind the trigger group and alongside the shooter's face, so there is no wasted space for the buttstock as in conventional designs. This permits a shorter firearm length for the same barrel length for improved maneuverability, and...

 assault rifle

Assault rifle

An assault rifle is a selective fire rifle that uses an intermediate cartridge and a detachable magazine. Assault rifles are the standard infantry weapons in most modern armies...

 chambered for the 5.45 x 39 mm round. The weapon underwent trials in December 1946. It's possible that this was the first bullpup

Bullpup

Bullpups are firearm configurations in which the action is located behind the trigger group and alongside the shooter's face, so there is no wasted space for the buttstock as in conventional designs. This permits a shorter firearm length for the same barrel length for improved maneuverability, and...

 assault rifle.

It used a bolt hooked to a steel cable attached to a spring in a tube above the barrel. The use of a steel cable in the TKB-09 No. 1 firearm action predated the AN-94

AN-94

The AN-94 is an advanced Russian assault rifle. The initials stand for Avtomat Nikonova Model of 1994....

.