Dueling 12.5's - build planning, ersatz-GL/SSC vs GAU-5 ASDW

[Stickman]

The GL/SSC is set up as primarily a daytime weapon, below is my primary night time/ bump in the dark gun in MK18 flavor.

[Diamondback]

The GL/SSC is set up as primarily a daytime weapon, below is my primary night time/ bump in the dark gun in MK18 flavor.

Ironic that the roles are reversed for our purposes... my Mk 18, once reconstituted onto a live lower, is on day shift because it can be more discreetly carried while anything bigger leaves rack only for Range or Bump-In-The-Night.

20180413_124836.jpg
This pic doesn't have the laser, tape, blast shield or left-side and brace-mount spare mags, but see anything you'd do differently or might be an NFA issue if this goes onto Live Iron? (Ready-to-fire length is 25.925 from A5 tube through to muzzle crown, though I'm not sure how the "unsafe to fire folded" LAW compares to irons that are meant to fire while folded. You know ATF, not happy if the rules are predictable...)