Finally made the jump after many years and got a Daniel defense DDM4 V3. I haven't fired it yet, but would like to put an electronic sight on it. the gun has the tall A2 (?) sight on the gas block and looks like it will block anything mounted to the top rail. What to you guys do in this case, short of replacing or modifying the gas block? Is there a riser or something that is used? I'm thinking of going with an EoTech hooded type.