Get the Bobro mount and don't look back. First it's a high quality mount and there isn't any need for a tool to adjust the tightness or fit for your picatinny flat top. It does not mar your reviever either and locks down tight. So IF you want to slap that scope on a different rifle it's easy pizzy or just take it off for cleaning. The RTZ (return to zero) in my limited experience is quite good. My .02 cents . . . http://www.bobroengineering.com/view/product/8/
DPMS LR-308L upper 18", 1/10 twist SS barrel
CMMG Mk III Lower,
Geissele DMR two stage trigger
Magpul PRS stock
Magpul MOE grip
NightForce 3.5-15X50 NXS NP-R1 reticle
GG&G Accucam QD mount
Burris Fastfire II MRD
GG&G B-Comp MRD mount
Harris S-LM Bipod Leg Notch Sling Swivel 9-13 inch
Blue Force/Vickers two point padded sling
DPMS carbon fibre fore grip
Weight 11.7 lbs. configured as above, but still a soft shooter.
Paint is next . . .