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Posted: 3/21/2010 12:29:01 PM EDT
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Friday was beautiful, took a vacation day and went to the range!
After around seventy rounds of short auto bursts, my bolt broke in two, at the hole where the key fits. I bought this bolt from Bushmaster around eight years ago. It went into a mostly Bushmaster with a RDIAS, and has been through approximately 35,000 rounds. This rifle has been resonably well look after, though occasionaly "rode hard, and put up wet". The other parts of this rifle show no signs of faultering, degradation or loss of accuracy. Is this a reasonable life span for a bolt? Thanks, L |
Looks like this, doesn't it? It's a known failure point on the platform that's even gotten a lot of official attention...and I wonder if anyone bothers to keep a round count on USGI platforms and swap bolts well before they get into probable failure counts. 
I learned it's a good idea to keep a couple of spare bolts around, just in case. Along with spare firing pins, fp retaining pins, lotsa other spare parts too. 
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It looks exactly like that L |
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Quoted:
How much does a RDIAS cost? Don't you need to put a full auto FCG and bolt carrier in your rifle to get it to work? Does possession of a legal DIAS protect you from "constructive intent" prosecution? The RDIAS cost $5,000, but that was years ago, I think they are twice that now. I did need to use a full auto FCG and bolt carrier. The auto sear it's self is registered, so it's all legal. Cheers, L |
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Quoted: Bet yours looks like this..... http://www.hunt101.com/data/500/medium/IMG_12541.jpg This is a Colt bolt with approximately 20K rounds in an M231 FPW. little bit of JB Weld and that'll be good as new and ready to rock.  |
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To be proactive.....inspect your bolt at least once per year & look for minute indications of a crack forming around the cam pin hole and at the base of the two locking lugs on each side of the extractor. The cam hole failure immediately puts your rifle out of action, so I pay more attention to this detail.
Regards, Hotgun |
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