The ZF-5 Rear Diopter Sight Drum is a great upgrade over castle rear sights for pistol-caliber roller-delayed blowback firearms, and includes four distinct aperatures for the end user’s sighting prefence.
Compatible with ZF-5, MP5, SP5, MP5K, SP-89, SP5K, MP5SD and other 9mm roller-delayed blowback firearms.
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