User Panel
User Panel
User Panel
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Posted: 12/12/2002 7:04:09 PM EDT
[#1]
Given proper care, and no outright abuse, basically forever. There are still perfect receivers from the early 60's.
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Posted: 12/12/2002 8:47:40 PM EDT
[#2]
they have been tested to well past 80,000rounds (I'm sure there have been ruined recievers but I havn't seen any).
If you have a pre-ban or registered MG reciever these I believe can be replaced by the original MFG if they are ruined or out of spec. If that was your worry (as far as post ban recievers who honestly cares if they lasted 2 years they would be worth the $90-$130 they cost.) |
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Posted: 12/13/2002 8:07:16 AM EDT
[#3]
pre-ban semi auto receivers can be replaced by the original manufacturer
registered transferrable mg receivers cannot be replaced. |
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Posted: 12/13/2002 9:15:16 AM EDT
[#4]
IIRC Bushmaster has used two lowers to test fire every upper they have ever made. That is hundreds of thousands of rounds.
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Posted: 12/13/2002 9:27:29 AM EDT
[#5]
A good forged lower will love you long time.
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Posted: 12/13/2002 11:25:11 AM EDT
[#6]
Quoted: IIRC Bushmaster has used two lowers to test fire every upper they have ever made. That is hundreds of thousands of rounds. Bushmaster test-fires (for function) every complete rifle and every complete upper by firing 10 rounds into a water tank. The complete rifles are fired as-is, and the complete uppers are used on one of two lowers. The older one has over 300,000 rounds through it, as well as *constant* wear on the pivot and takedown pin holes in the lower. Several of the pin holes are no longer in-spec due to excessive wear, yet the lowers still run just fine. Note that these are FORGED lowers, though. Cast uppers aren't likely to last as long. -Troy |
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