Inside the SOLGW 11.5” MK1 CAR: Build Quality and Performance
This expert review from Preston Moore details the Sons of Liberty Gun Works (SOLGW) 11.5” MK1 CAR AR-15 upper receiver. It features a comprehensive technical breakdown, including precise measurements of barrel dimensions, gas port, and BCG tolerances, alongside rigorous 30-shot group accuracy testing with various ammunition types. The analysis highlights the barrel's performance, particularly its consistency with PMC 62gr M855 and its potential for sub-MOA accuracy with specific loads, as evaluated by an instructor with high authority and data-driven methodology.










