My 18" MK12 Style DPMS Build
I bought a Spikes upper receiver (Aim), DPMS 18" MK-12 Barrel (Midway) , Levang Linear Comp (Midway), Troy 15" Extreme (Primary Arms).. YHM low-pro gas-block, riding on a new PSA lower with A2 stock (SGuide).. (stock due in this Saturday)..
Here she is without the scope and MagPul MBUS..
http://www.sprforums.com/forumimages/overallpic.jpg
I have a Bushnell Trophy XLT 3-9x40 with 600 DOA reticle mounted on it now.. but I don't have that pic handy.. (I'll put it up later)
I shot 5 rounds of PMC XTAC 556 with 0 issues to function check the gasblock fitment.
What says the crowd?? total was like $850 for everything.. (lower and stock included..)