AR's being hacked up by "Gunsmiths"
Improper AR-15 gunsmithing can ruin expensive components. Grinding aluminum feed ramps, like M4 style on Mega Arms MKM/MML uppers, removes hard anodizing, leading to rapid wear. Always vet gunsmiths carefully, as even minor errors can cause feeding issues. A cotton swab test can reveal sharp edges indicating poor ramp blending.









