the T81 was a great improvement over the AK47. i like the short stroke gas piston that the T81 incorporates... similarly, i like the FN FAL
but... as for the Yugo M70AB2, it essentially feels the same to me. the design is almost the same... except for one thing. the grenade sight leaf will shut the gas system off and you will have to manually cycle the rifle. you can't use the rifle sights when the grenade sights are up anyways.