17:08
3D Printed AR15: A Reliable Alternative to 80% Lowers? (Tested in 2020)
Gunny McGunsmith
44:00
WWSD2020 Style 3D Printed Lower Update + His and Hers AR15 Builds
4:10
3D Printed AR15 1200 Round Update: Two Cracks in Unexpected Places (And How to Fix Them)