Ive been considering buying the model with the standard duplex or german #4 style crosshairs. On the leupold website it says "includes metric" what does that mean? Is the adjustment in mils? It is for an ar carbine and I dont feel the need for the spr reticle or a vortex for the same reason, even though I like that one too. I also dont feel the need for exposed turrets like on the vx-r patrol since I dont plan doing much shooting past 400 with this.