Fits any HK variant that has a factory steel backplate and standard buffer (not included). Installs easily with included hardware. Not compatible with the HK heavy buffer. Compatible models include: HK91, HK93, HKG3, HK33, PTR91, SR9. Will fit Cetme backplates with some gunsmithing.
Features
Adjustable for cheek weld height, length of pull, and cheek weld placement
Machined aluminum adjustment dials with positive click detents
Corrosion resistant stainless steel shafts
Rubber recoil pad with solid aluminum core
Adapter for sling/monopod mounting
Reversible QD front sling mount, and rear 1.5” loop
