Iwi carmel
- Thread starter Negev
- Start date
They're not even really a DI system, they're closer to a piston system, just a weird one. Go look at how an AG42 works, thats a real DI system.
Heat? Doesn't the AR dump more heat into the action than a normal piston system?
And does a AR have fewer moving parts than an AK? Google tells me no but I've never taken apart an AK...
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Ppl should stop calling AR15 "DI" for any conversation beyond separating it from traditional piston systems in colloquial sense. You're saying "DI has less parts, thus cheaper to manufacture" - correct, but then you immediately apply this to AR15 which is not DI, but a hybrid system. Want to see DI - take a look at AG42 as it was said above. AR has the same set of part as traditional piston system except they kind of positioned in other unexpected places, such as carrier. Stoner did not get away from components of piston system, he just repositioned them, and he had to overcomplicate carrier design because of this. There are benefits of this design and there drawbacks, it is a system perfected by decades of military service and US civilian usage - but it is outdated and not a perfect system with its own limitations.
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AR15 was not cheaper to manufacture - it is only much cheaper now because it has been MASS produced with modern CNC stations and forging setup. Efficiency from modern manufacturing, but not so much back in the 60's. Think of asking gun makers in the 50s to 70's to forge an aluminum piece and then drill a hole through so a tubular BGC can fit in. The tolerance is not the same as letting a blocky BGC floating on wielded on rails in a box.
Back in the 60's, it was cheaper to stamp metal sheet and to get some poor souls to wield them on a jig. Fitting a block BGC into a looser railed receiver was easier back then.
AR15 was way way ahead of everyone in the 50's and 60's. It took europeans 2 iterations ( stamped sheet metal, and then plastic ) to get to where Stoner started in the 50's - and then extrusion tubes, but everyone ends up with a gun manufactured using the AR technology, aka forged aluminum receivers with tubular BGC, in every rich European countries now.
Back in the 60's, it was cheaper to stamp metal sheet and to get some poor souls to wield them on a jig. Fitting a block BGC into a looser railed receiver was easier back then.
AR15 was way way ahead of everyone in the 50's and 60's. It took europeans 2 iterations ( stamped sheet metal, and then plastic ) to get to where Stoner started in the 50's - and then extrusion tubes, but everyone ends up with a gun manufactured using the AR technology, aka forged aluminum receivers with tubular BGC, in every rich European countries now.
Gunnerlove
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And the Stoner action protects bolt lugs from wear.
Chuckles in 416
Chuckles in 416
I don't want to say the AR gas system doesn't dump more heat into the receiver because I don't know that for sure. What I can tell you from personal experience is that AR's don't fail from excess heat in the receiver. The weakest points in an AR are the barrel ahead of the chamber and the gas tube. Very bad sh!t happens if the barrel gets seriously overheated. The gas tube is susceptible to bursting, which might pepper your support hand with small metal shards, but otherwise it just goes POP.
We test fired an AR to the point I was seriously afraid the thing was gonna explode in our hands. The gun had been modified to prevent the barrel overheating and bursting but we could see the gas tube turn cherry red at the end of each mag dump.
The receiver got hot enough you didn't want to touch it and even the buffer tube was too hot to put your face on. I attribute much of that heat to being sucked into the aluminum receiver parts from the VERY HOT chamber and back end of the barrel.
IMO overheating an AR is a somewhat self limiting issue. At some point, long before the gun is in danger of coming apart, it becomes way too hot to handle and keep running.
