Enhanced trigger guard for AR-15 lower receiver. If you use Design Spark Mechanical for your CAD software you can use the native models (.rsdoc) to remix this into one of your own.
Narrowed the fwd/aft tabs from 11mm to 10.6mm because the fit was too snug.
Rounded off the upper edges
I've only printed this in PLA so far but I plan on reprinting it with Taulman Bridge (Nylon) for the final product. Supports are required for the overhangs when printed on the side (like shown in the pictures).