UMP owners: I am looking to put an Eotech XPS-0 or EXPS-0 on my UMP. I have read some discussions that the top 1/3 of the front sight hood needs to be cut down so as not to interfere with the sight line of the Holo optic on the XPS-2? Does this allow lower third co-witness?
Experiences appreciated more than opinions. Thanks,
P7
Experiences appreciated more than opinions. Thanks,
P7


















































