AR-15 display stand

I created this for the vendors of shows so they can display an AR.
It has a 3 degree angle for AR to be level.

I print mine with 15% infill at .4 layer height and have zero issues on the item working.

The only AR I found it has trouble with is a 20 inch 6.5 Grendel.

other than that it works perfect.

Please let me know if you have ideas for upgrades.