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MacKenzie Braddon

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What's the difference between forged and cast trunions?

Second question, which is better?
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Joe Charles

Answered

Both types of trunions start out as cast, and the forged ones get smashed with a big-ass anvil which aligns the microscopic structure of the steel and strengthens it while also knocking out any voids and air pockets. With cast trunions, the metal is poured into a mold and you're stuck with what you get. Forged is better than machined which is better than cast. It's reasonable to get 2,000 rounds through an AK with a cast trunion but it's mostly a luck thing. Check for cracks when you clean it.

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Century Arms WASR-10

Century Arms WASR-10

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What's the difference between forged and cast trunions?

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I just bought one of these and took it to the range and the trigger doesn't always reset. On my third shot the trigger was stuck back and when I looked at it I ND'd (thankfully) into the berm. The trigger got stuck a couple more times after that and I had to push it forward to get it to reset. Should I send it back to get fixed?
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