Ultimate Piston AR-15 Meltdown!

Great video link, thank you.

Unfortunately a lot of ar-15 pistons are kind of a design afterthought. If a piston is done in the best possible way, it might be leaps better, like a sig 550 but with a similar contour barrel.
 
Surprised by the LMT carrier mushrooming like that. Like he said: did the rod go out of alignment and cause the carrier to do that, or, was the carrier deforming due to repeated impacts which then in turn bent the rod? Either way, I'm surprised because LMTs are one of the better carriers out there
 
Melnibonean said:
Surprised by the LMT carrier mushrooming like that. Like he said: did the rod go out of alignment and cause the carrier to do that, or, was the carrier deforming due to repeated impacts which then in turn bent the rod? Either way, I'm surprised because LMTs are one of the better carriers out there
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Seeing as the top of the key was getting hammered pretty badly it's safe to say that it started doing that after the rod bent upwards.
 
inthewoods said:
Great video link, thank you.

Unfortunately a lot of ar-15 pistons are kind of a design afterthought. If a piston is done in the best possible way, it might be leaps better, like a sig 550 but with a similar contour barrel.
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watch his video on the ak47 meltdown, that will satiate your curiosity
 
Good vid as usual. Thanks for posting.

The DI AR15 still impresses the heck out of me for how well it worked. Put a heavy profile barrel on it so that things would be equal... and it seems like with the fewer moving parts to go wrong on a DI system, the advantage would go to it on a meltdown test, providing you use a quality gas block and tube.
 
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mikethebike said:
watch his video on the ak47 meltdown, that will satiate your curiosity
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ha! thanks for the suggestion. the second try with a barrel that wasnt too thin "Ultimate AK Meltdown: Reloaded" was pretty dramatic! still, the di ar15 did amazingly well too imo

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It goes on to show that only HK and colt have the technical and engineering know how to design and actually produce short stroke push rod systems that work inside an AR upper receiver.
 
greentips said:
It goes on to show that only HK and colt have the technical and engineering know how to design and actually produce short stroke push rod systems that work inside an AR upper receiver.
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This. Keep in mind though companies can tweak their production runs to handle various types of firing schedule. It would be interesting to see how the HK M27 would do in this test.
 
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