The genuine Heckler & Koch MP5 A3 three-position collapsible stock — the correct buttstock for any clone-correct MP5, MP5K-PDW, or SP5 build. This is the HK-factory A3 assembly, not a reproduction, with the original steel stock tube, locking detent, and single-strut geometry that defines the H&K roller-delayed submachine gun family.
Three positions: fully collapsed for CQB and vehicle work, intermediate, and fully extended for a full cheek weld and sight picture. The internal spring tension and detent engagement are tuned to HK spec — no rattle, positive lockup at every stop. Steel construction with HK's factory parkerized finish.
Fits MP5, MP5A3, SP5, SP5K, and correctly spec'd clones built on HK, POF, MKE, or equivalent receivers. This is the part you need to finish an A3 clone to SEF-group standards, replace a worn stock on a service-era rifle, or upgrade an A2 fixed-stock host. Genuine HK parts availability is tight — we list what we have when we have it.
Order yours today while we have stock on hand.
Zenith
Zenith
