Krebs Custom UFM Long rail, Mk6 E safety and Peep Sight install
We take a look at the Krebs Custom UFM Long rail, peep sight and MK6 Enhanced safety upgrades for the AK47 / AK74 and Marc Krebs goes over installing all three.
Krebs video featuring UFM short rail and M4 stock adapter-
https://www.youtube.com/watch?v=qn3UUf6NqFI&t=3s
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