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Posted: 3/19/2008 11:22:13 PM EDT
| I cant seem to find it anywhere..... what is the difference between a cast lower and a forged one. Difference in quality? Any explanation would be helpful. |
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Forgings are much more durable than castings due to the layered granular structure induced by the forging process. Castings can be very neat and clean, and they require less machining because they can be made to a near net shape. Though they have a very even granular structure....it isn't as dense as a forging and the lack of any forced layered boundaries allows any weakness to propagate unchecked. |
I have no first hand experence with essential arms lowers, but I have read that older ones are cast, at least some, but the newer ones are forged. I could be way off base though. |
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