Amoeba Striker Upgraded Steel Bolt Cylinder part.  This is just the upgraded cylinder piece without any of the guts.  You will still need the Cylinder Bolt Head, piston, spring, and spring guide for this to function. Built to handle upgraded heavier springs.  Stainless steel beast!

Please note that the cylinder kit comes unlubricated from the factory.  We suggest using some silicone oil or silicone grease to lube it up for a higher compression rate. 

Made to fit on the Amoeba series of spring Striker sniper rifles.  Official made Amoeba product. 2218009