Maybe action noise. GM has on order. Check back with him. https://www.hkspecialiststore.com/pr...?productId=202
Anyone know where in stock I can get a German rear drum diopter. I had to get a American made drum from hk parts all I could find.
Also if anyone knows it seems my SP5 is quieter than my Z5RS same can and ammo? Is that possible, or do I need my ears checked? The HK is a real smooth & accurate shooter. I’m very happy with her after 300 rounds today
HKparts should have quite a few fake German ones available like they sent me
Heckler & Koch Shooting Team
Heckler & Koch Certified Armorer
The sp5 has the upgraded F bolt group in it and the heavier recoil spring, maybe it makes a difference. I've personally never noticed when shooting shooting two guns side by side.
On the rear sight I'd wait till Gordon gets more in unless you are in a hurry. If that is the case he has the complete rear sight with base in stock. Past that you can always check gatewood as well although they are out of stock right now.