Good optic. Poor mount
The PK01 VI is a first-class, enclosed red dot sight. The mount was represented as one that works on either Weaver or M1913 Picatinny mounts. It doesn't. The PK01 mountVI supplied with the optic clamps securely on Weaver mounts, but does not clamp securely on the narrower M1913 Picatinny mount. The stock PK01 VI mount is too loose and won't clamp on the M1913 as the military rail is narrower than Weaver and has the teeth on the rail spaced farther apart. I replaced the stock Belorussian mount with a QR 30mm scope mount. Now the system works very well.
Verified purchase: YesCondition: New