I like PTR, I just wished that PTR would have the option to have or NOT have a picatinny rail mount welded on the firearm. (IMO), the rail is too high to have the optic co-witness with the iron sights.
HKparts sells the MFI ultra low pictanny rail mount that co-witnesses with the optics. Which is nice.
The ultra low mount co-witnesses using the Holosun green dot and Aimpoint optics. As can see through the rear and front iron sights.
Last edited by islandfocus2; 09-13-2019 at 06:44 PM.