Quoted:
J&T uses e.r. shaw barrels, can anyone confirm their quality? i read a thread that said they suck!!!
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They don't suck. They're just not made with the same grade of steel as Colt and Bushmaster barrels. If I remember right, Shaw uses 4140 steel, which is common in the firearms industry for sporting rifles; Colt and Bushie use 4150, which is milspec. Colt and Bushmaster also habitually sell their military style barrels w/standard hard chored bores, tho Colt has been playing games w/ the plating situation in recent years. With the other makers, plating is either optional, or not available.
If you're shooting 10,000 rounds a year, or a lot of sustained full auto, the Shaw barrels will probably wear out somewhat faster, but the average shooter will never know the difference.