Ultimate Cylinder 451-550mm (G3/M16A2/AK)
Ultimate Cylinder 451-550mm (G3/M16A2/AK).
The cylinder is made of steel and have been surface treated to ensure low friction and high durability. The placement and size of the decompression holes have been designed to help give maximum compression thus increasing the effect.
For G3/M16A2/AK series, with an internal barrel length of 451-550 mm.