Quote:
|
Originally Posted by evoasis
Is there any different processes with metal treatment etc? I heard certain brands have a better metal quality than others.. Alloy types etc.. Bushmaster has always been a reliable brand, and I don't see a difference between the two; I'd say go big and build what you want from scratch.
|
95% of AR brands use forged 7075 upper/lower, minor differences in the type of finish on these two parts. RE's can be commercial diameter or mil-spec diameter. Most RE's are extruded 6000 series, a true mil-spec is forged 7075.
Different barrel steel grades. Mil-spec bolts have a specified series of testing and material specs. For most users the steel grade and testing makes little difference, but there is a difference.