My airsoft R1 and R2. R1 (FAL rifle) was the fourth King Arms FAL in Russia converted to Belgian FAL model (RS handguards, flash hiders).
R2 was the first such in my country (I'm the maniac, you know=)))).
They were improved to 115 m/s via Prometheus MS 110 springs, Guarder ball bearing spring guides, Action ball bearings for piston head, Systema motors.
Wires were changed to 1,5 mm^2 PVC-coated copper wires.
Both of them were shooted more than 40K bbs. They are awesome!))
My teammate Martovsky built R1 with looooong 590mm barrel, RS flash hider, handguards, buttstock, grenade launcher sight, gasblock and of course RS bayonet. His Rifle is a piece of art!)