I was asking yourself the same thing. Minimal amp TIG welding may very well be the answer to just welding the roll marks. What's the perpose of copper? The modification procedure explained underneath will take away that included product and can greatly weaken the reduce to some extent where by https://coltcombatelitecommander489900.idblogmaker.com/30640183/colt-m16a1-for-sale-things-to-know-before-you-buy