WHAT BOLT IS THIS?

ARAR-1515

>>32679327
>Guys, what bolt is this?
an incredibly stuppid one.
>moar locking lugs
does not make a stronger lock up

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>>32679349
uh it kinda does, more surface area = stronger lock up, see ross bolt in pic related

>inb4 "HUR HUR ROSS RIFLE BLOWS UP" meme

>>32679370
>uh it kinda does, more surface area = stronger lock up, see

sure. but you don't need that interrupion in the lugs. without it, the lock up would be even stronger. instead, that interruption just introduced a weak spot.

>>32679327
johnson maybe?

>>32679370
it only blows up if you put it back together wrong.

>>32679393
>just introduced a weak spot
no ross ever failed because of the lugs

>>32679370
the reason you have more lugs is so that you can have a shorter rotation in your action with out giving up strength

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>>32679407
>no ross ever failed because of the lugs
I didn't say they did. I'm saying the interrupption in the lug in OP pic is pointless and stupid.

>>32679408
>the reason you have more lugs is so that you can have a shorter rotation in your action with out giving up strength

in theory but this would not apply to the construct in OP pic.

>>32679436
why would AI have 6 lugs (3 sets of 2 like that ar looking bolt) on their magnum actions but only 3 lugs on their short actions if it wasnt a stronger design?

This was on their aw series since all new AI rifles now have 6 lugs.

>>32679503
* 2 sets of 3

>>32679503
>why would AI have 6 lugs (3 sets of 2 like that ar looking bolt) on their magnum actions but only 3 lugs on their short actions if it wasnt a stronger design?


how would I know what's going on in the heads of tards? the point is, both rows of lugs travel in the same cut outs of the barrel extension and they twist the same amount up lockup. there is no need for that interruption rendering what could be one long lug into two short lugs unless you want the lugs to be more prone to shearing off.

>>32679533
cite an example of that actually happening in anywhere but your fantasy world

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>>32679567
>cite an example of that actually happening in anywhere but your fantasy world
>AR15 lugs never shear off

>>32679580

That looks like 7.62x39 AR bolt. Those fuckers break all the time.

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>>32679580

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>>32679580

This guy >>32679597
is correct.
Here is an image of a typical 5.56 bolt face- notice the much thicker rim, providing ample support to keep the locking lugs attached.

>>32679597
>That looks like 7.62x39 AR bolt. Those fuckers break all the time.

How the fuck does that matter?

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>>32679606
go here
>>32679604

>>32679614
Because the AR was not designed to fire 7.62x39.
That is like saying "gee, my honda civic's control arms broke when I tried to rally it, must be a shit car". The honda civic was manufactured as a road-based passenger vehicle, not a rally car.

>>32679632
>Because the AR was not designed to fire 7.62x39.

It doesn't matter because 223 AR lugs still shear off. hey break, like any other mechanical piece of steel. just because x39 ARs are a poorly rigged afterthough and break more often, it doesn't mean that 223 AR don't break or that this is >>32679567 "happening in my fantasy world".

>>32679630
And who made those parts?
You can't attribute mediocre metallurgy to a poor design.

>>32679614

AR-15 is not designed for 7.62x39. 7.62x39 has wider rim than 5.56x45 and trying to shoehorn it into a AR-15 construction results in insufficient material thickness on the bolt head.

This is the reason why AR-10 has slightly wider upper receiver and bolt; to accomodate the larger cartridge.

There have been some improperly heat treated 5.56 bolts out there which have sheared lugs not so have some US made cast AK bolts too.

>>32679653
Seems like you are trying to focus on a 0.01% failure rate.
Think for a moment how many ARs exist within the civilian, law enforcement, and military market... now if such a problem was so prevalent, then the citizenry and law enforcement would not buy the AR, and the military would have rejected the design during trials, having hundreds of thousands of soldiers trusting their lives to it.

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>>32679654
>>32679665

gucci tier sharps reliabolt sheard off lug:

http://www.ar15.com/forums/t_3_118/658805_I_broke_the_unbreakable_Sharps_Reliabolt___TWO_BROKEN_NOW__Update_Pg__5.html

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>>32679677

So this proves AK is shitty and unsafe design too?

>>32679673
>Seems like you are trying to focus on a 0.01% failure rate.

No. I'm stating a fact that any part of anything can fail. so can and do AR lugs.

>Think for a moment how many ARs exist within the civilian, law enforcement, and military market... now if such a problem was so prevalent,
>so prevalent

you are implying that I quantified the "problem" at all which is a blatant lie and in bad faith.

>then the citizenry and law enforcement would not buy the AR, and the military would have rejected the design during trials, having hundreds of thousands of soldiers trusting their lives to it.

you are implying that militaries have not sent soldiers (knowlingly) to war with inferior gear in the past. again, bad faith and I'm out.

>>32679614
>i have little to no understanding of machinery or physics; the post

>>32679702
>So this proves AK is shitty and unsafe design too?

it proves that anything will break, yes. now you can take that strawman of "is shitty and unsafe design too" outside and play with it all by your lonesome.

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>>32679580
way to move the goal post, that is not an AI bolt nor does it have 2 rows of locking lugs like the bolt in OP, although you did prove that 1 row of lugs is weaker especially when the structural integrity is compromised by thinning out the material in the bolt face.

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>>32679702
Mosin Nagant a shit too

>>32679677
This is a very fine example of cherry picking
The sharps reliabolt its a modification to the standard AR-15 Bolt that is known for shearing lugs especially so in SBRs.

>>32679711
>I'm stating a fact that any part of anything can fail
Since anything can fail, why do you keep focusing on AR lugs?
You've just gotten the point we are all trying to make: there is nothing special or inherently wrong with the AR locking lugs and no amount of cherry-picking will ever change the fact that any mechanical device will inevitably fail.

>>32679729
thank you captain obvious the mosin is a shit rifle, only ever worth purchasing when there was nothing available cheaper, at the prices dealers are trying to gouge out of them today there are dozens of better designs in the same price class or cheaper. the only reason the damn things sell so high is because of meme magic

>>32679749
Probably because op pic is clearly styled after an AR bolt

>>32679720
Kek.

/k/ has traditionally also been a basketcare of duds who will never understand why "this" can't be adapted to "that". Yet they still keep on insisting, not for the keks but gaddamit for Real. And nothing helps.

OP here, I hate you all.


You don't answer my question and autistically sperg out over the fact you can't into physics or machinery.

Just tell me what gun the bolt goes to, so I can leave this autistic place.

>>32679820
Are you asking for real because you don't know?
Because I haven't seen one exactly like it before, and reverse image search yields no results.

>>32679838
>Are you asking for real because you don't know?

Yes.

>>32679820
It is not for an AR-15, I can tell you that much.
It is likely that it is for something with an AR-style bolt, like SCAR, AUG, G36, etc...?

Still looking.

>>32679838
>reverse image search
>on an oc image of of a bolt the op is trying to identify
Are you fucking retarded?....

>>32679888
it's none of those. they all use pretty much exactly the ar bolt.

>>32679910
if it is OC than op must have gotten it from somewhere, or he would already know what it is and not need to ask.

>>32679820
Are you sure it's not a troll shop? The photo is not too sharp.

>>32679949
Holy shit you are retarded.

>>32679958
not as retarded as you

>>32679946
Yeah, I figured as much.
The length of it and those holes in the back are really peculiar. The overall length seems too short in my opinion.

>>32679820
where did you find the image OP?

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Watching thread to see if OP gets an actual answer but also to see

>>32679949
if it gets any worse than this. You can't distinguish the trolls from the normal posters anymore.

>>32680163
the trolls are the normal posters at this time of the day.

>>32680060
I can't find it in the wild. I actually went through some recent patents and nothing.

If it's not a shoop
>the second row of lugs taken from some other bolt facing backwards, also utterly strange wear pattern on the surface of the bolt
then it may be an one-off study piece made by some gunsmith with an access to CNC gear, just to see would it work. Not unheard of these times where easy access to high-end CNC, established materials and their treatments, and general creativity induced by all sorts of Internet influences are making way for all sorts of (even more stupid) experiments.

If it is real, I wonder what is the scale of the photo. 50 cal?

>>32680075
Imgur

>>32680163
not trolling.

>>32680267
>Imgur
>no link
Now you are trolling.

>>32680323
Can you autists stop being so fucking autistic?

http://imgur.com/pLTjOl8

Now fuck off and die.

File: mauser 96 straight pull.jpg (50KB, 700x525px) Image search: [Google]

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>>32679327
I think I may have found it, mauser 96 straight pull the bolt looks pretty similar but I have not yet been able to find an image of it outside the gun

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Pretty sure that's a mining drill head, op

>>32679393
That's not how it works, moron.

>>32680367
this makes perfect sense, straight-pull bolts often have some lugs "in series," if you will

>>32680419
It increases locking surface without having to cam the bolt very far to unlock or lock.

>>32680367
it's this for sure.
>>32680395
are you some kind of moron?

>>32680367
>>32680419
Also helical lugs since they need to cam on the lugs to reduce operating force on extraction since you don't get the lever arm that you do with a bolt action

>>32680419
it is a very good probability, could still be incorrect though as I still can't find an image of the bolt out of the rifle nor an image of the bolt head by itself that image in the gun is the only one I have been able to find and my lunchbreak is almost over.

>>32680340
>http://imgur.com/pLTjOl8
Anon, why so mad if someone asks for a specific link as a proof, to support Your case? C'mon.

>>32680367
Great find. At so many levels.

>>32679348
Underrated.

>>32680453
>that image in the gun is the only one I have been able to find and my lunchbreak is almost over.

A lunchbrea/k/ well spent.

>>32679327
Why not just make longer lugs?

>>32680706
Because then the locking surface isn't increased, you just have longer lugs.

>>32679393
>non-interupted 'threading'
It's like you want an overly complex action.

>>32680864
which index into the receiver a greater depth creating more contact by surface area...

>>32681454
Uh, no.

>>32679677
>>32679730
Sharps bolts had a bad batch early on that was recalled.

>>32681454
that's not how locking lugs work retard

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>>32679348

>nobody has figured it out yet
holy shit it's so obvious

>>32682409
>holy shit it's so obvious
which means you have no idea what it is.

>>32682409
At the moment of your post everyone else in the thread had figured it out. Dud.

>>32681454
You genuinely have no idea at all what is a "locking lug" in a firearm, right?

These issues are easily corrected with two things.
>education
>focusing when education

An attention span of an insect won't help you in life. You need to man up.

>>32683274
you can't fix stupid

>>32679327
Albert arms .338lm ar.

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>>32683670
close, it does have the double row of lugs but the rest doesn't match

>>32683709
Shit, you're right.

I was going to jerk off but now I need to know what rifle that is from.

File: 992-titan-16-sicherheit.png (66KB, 530x340px) Image search: [Google]

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Titan 16 also has a multi (16) lug bolt. But it's not that either.

>>32684067
I think that is the bolt in the carrier. It looks like it has three openings in it which could be for those tabs in op pic.

>>32684371
could also be that, although by the looks of the rifle it seems to be a copy of the mauser 1996 rifle.

OP ffrom the original thread here.

I still fucking hate you autists, but I had the question solved.

Since it's turned into a meme, I don't know if I should tell you all

>>32687012
I think I'm the only other person who cared please tell me.

>>32687012
http://picturearchive.gunauction.com/652074913/8211906/fa85efa69fed302f185684e29f27a7c6.jpg

Mauser 96 Straight pull

For you.

>>32687065
>>32687065
>>32687065
>>32687065

>>32679327

nice, more flaws to a already flawed rifle.

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>>32679327
It is merkel RX helix bolt anon and all you other retards.

>>32687096
we figured that out a while ago

>>32687203
no it isn't the merkel has fewer lugs

>>32679533
Maybe it is a space for debris to collect so the action keeps running, even when it's filthy.

>>32679533
>how would I know what's going on in the heads of tards?

I think you hit the nail in the head with this point.

It's both
>Complex but justified engineering design
>"Mein stronk opinion how things must be done, Donnerwetter"

Pretty typical attitude amongst firearms designers.

>>32679348
Shit I was gunna post this. Fpbp

>>32687953
No, that's not what it's for. He's just a moron who doesn't understand.

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Posting my gear