Item #:ZF5U01300 New production, U.S. made ZF-5 cocking tube end cap assembly. Compatible with MP5, HK94, MP5K, SP89, MP5 40 & MP5 10mm and many other roller delayed blowback firearms. Machined from premium steel and manganese phosphate coated for corrosion resistance. Includes spring and detent for secure fit. Made in the USA
