Semi-automatic tactical rimfire rifle. The CZ 512 system is fitted an adjustable stock, aluminium fore stock and a one-piece 530 mm Picatinny rail for the attachment of various accessories. The aluminium fore stock is of a cylindrical shape and is ventilated for better transfer of heat from the barrel during fast firing. The cylinder is fitted with 80 threaded holes on its circumference for the attachment of various accessories. The stock can be adjusted in length in 6 positions. The comb height is also adjustable.