Avoid These AR-15 Build Part Mistakes for Optimal Performance
Building an AR-15 requires careful selection of critical components to ensure safety and performance. Avoid compromising on barrels, bolt carrier groups (BCGs), and gas blocks, as these directly impact reliability and accuracy. While receiver sets are less critical if built to spec, quality barrels (4150 CMV or 416R SS) with appropriate twist rates and properly tested BCGs (MPI, HPT) are essential. Attention to detail in assembly, like staking gas keys and using quality fasteners, prevents catastrophic failures.









