looks good, i guess experts that make carbine course videos say the farther out your hand is the quicker you can transition accurately. whatever.
i went with both, standing i like it on the magwell, more stable.
there are 2 other magwell type grips out, one smaller that goes around the base, other hooks on rail and kind of swoops down in front of magwell but not really attached to it. i like magwell in pic, it actually does guide the mag in abit more easliy.
have to dremel it to make it fit.