Forums / Gun Discussion / Plum Crazy lower

2 years 33 weeks ago, 2:17 PM

Reaper308

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Plum Crazy lower

I saw this on another site. I don't know any details... Just a caption saying "A picture is worth a thousand words"

"Proelium Comminus Auctoritate" "Sometimes the light at the end of the tunnel is a muzzle flash."
2 years 33 weeks ago, 5:41 PM

clintlebo

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over torque

I interpret the picture as an over torquing of the castle nut. The only reason I can come up with for the wrench to be present. The break also appears to be longer in the "back" of the picture, which lends some sort of empirical evidence for my hypothesis...

clint

"Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." (Calvin & Hobbes)
2 years 33 weeks ago, 6:06 PM

Reaper308

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more PC failures

9,000 words

"Proelium Comminus Auctoritate" "Sometimes the light at the end of the tunnel is a muzzle flash."
2 years 33 weeks ago, 6:29 PM

greg az

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I see PC advertised all the time, i don't know anything about them, nor am i familiar with the material their comprised of.. That being said.. I know some shit about castle nuts, and wrenches, both torque and castle..

Don't understand why the front pivot pin housing is cracked, unless the same over torque applied to the castle wrench was applied to the vice holding the unit..

hmm empirical evidence.. "honey hand me that pipe so i can extend this wrench and get her good and tight"

a man has to hold his word, hold his beliefs, and hold a good sight picture.
2 years 33 weeks ago, 6:55 PM

HampsterW

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that made it through QC, any amount of torque would produce the same results, Uncle Sam spent a lot of money teaching us 'wrenches' DT and NDT (destructive and non destructive testing) of parts, so that would be my educated guess..... Been busy with the 2012 " Parts Plus autorama" car show that my Co. sponsors every year so haven't been online much other than email, I hope all is well.

Change you can truly believe in comes from the barrel of a gun---------------------------------------------------------------------------------Ron Paul 2012----Vote the bastards out!---------------------------------
2 years 33 weeks ago, 7:09 PM

daisycutter

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kinda scary, someone took their anger out on their gun, maybe?
Where is the "Parts Plus autorama" held? I typed that b4 I thought about doing a Bing search. That's a pretty good job you have?

iyaoyas
2 years 33 weeks ago, 10:03 PM

HampsterW

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'lowers' in the photos, one with the 'receiver tube' lug busted off and the second with the 'mag' well split open, they are not one and the same. I agree in both instances they are scary.
Autorama is here in SLC along with the 'crossroads of the west gun show'....Win,win...Lol

(in edit) I been working too much the 'buffer tube'.....Christ, I assume that I still know one end of a firearm from the other.....Sad...

Change you can truly believe in comes from the barrel of a gun---------------------------------------------------------------------------------Ron Paul 2012----Vote the bastards out!---------------------------------
2 years 33 weeks ago, 7:18 PM

HampsterW

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Dc,

FYI http://autorama.com/shows/attend/salt-lake-city-2012

Change you can truly believe in comes from the barrel of a gun---------------------------------------------------------------------------------Ron Paul 2012----Vote the bastards out!---------------------------------
2 years 33 weeks ago, 7:29 PM

daisycutter

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by the fire department. Lots of nice ppl but lacking the "big".
Thanks !

iyaoyas
2 years 33 weeks ago, 8:59 PM

Ishootdaily

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He actually loves his and it is fairing well after 1000's of rounds through it.

But, he told me you have to fit the lower to your upper where the pins go through. Also everything I've read about them says the same thing. People talk about having to give the upper a good wack to get the rear pin tab to seat into the lower. These people should stop and think about it because with forcing the Metal Upper Tab between the too tight fitting lower pin bosses, which do they think is going to give first? Even if it does not out right crack, it is going to put the lower under pressure so it is just waiting to actually crack.

I'd say it was user error. Same with the split mag well, it was probably put into a vise or crammed onto a board in a home made AR stand.

I wouldn't own one, but that is my personal choice, it is plastic in the end. That said, I don't think they are inherently a crap lower as much as some don't understand the adage " You have to be smarter than what your working with "

No sir, he fell into that bullet... Never argue with a stupid person. They'll just drag you down to their level and beat you with experience!!
2 years 33 weeks ago, 4:59 AM

hot_diggity87

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almost looked like

kind of looks like the metal is crystalized in the areas where cracked... could be wrong though, easier to tell when in person. not sure how hot they get these receivers and stuff to build em or what ever but they may have been cooled down too fast somewhere down along the line.

I'm not home officer, take me drunk!
2 years 33 weeks ago, 5:53 AM

Ishootdaily

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..

If you look at the back of the lower where the boss is at with the pin hole in it. There is too much material on the bosses and they are cramming their upper down in between those bosses instead of removing some material so it fits snuggly.

Doing it the way they are, the Poly is shoving out because of the Metal being forced between it. It is never ever good to flew or stress Poly, as a matter of fact you can snap Kydex 0.90 by just scratching a line on it and bending it in one direction and then back the other.

That Poly lower is going to have very little flex in it and with forcing the metal in there, they gouge it and spread it. It is no wonder it breaks on them, user error.

The one with the wrench looks as if it was a combination of cramming the lower in and then deciding to install an up grade involving the buffer tube. With it already being stress cracked, and real force they put on it would be magnified, POP, SHIT! damn... piece of junk....

and a bad rap is born!

"got's to be smarter than what you working with, gets spensive utter wize"

No sir, he fell into that bullet... Never argue with a stupid person. They'll just drag you down to their level and beat you with experience!!

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