Mega Rad Gun Thread -

дядя Боря

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I fucking love my AUG A3. I'm not the biggest 5.56x45mm fan. I prefer .308/7.62x51mm for fighting rifles. But for close quarters and urban combat, the AUG is awesome. You get a package that's nearly as compact as an M4, but you get a 20" barrel and can take full advantage of 5.56x45mm since it's lethality is based in large part on it's muzzle velocity. I personally feel the AUG is the best 5.56x45mm rifle you can get, but that's just one Dude's humble opinion.

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how so? The trigger on it looks atrocious and it's basically a bullpup gas AR. I like uncharacteristic to German guns simplicity though.
 

The Dude

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how so? The trigger on it looks atrocious and it's basically a bullpup gas AR. I like uncharacteristic to German guns simplicity though.
ARs are direct gas impingement. The AUG is a short stroke gas piston. The AUG's trigger isn't that bad, and it's a far more robust and rugged design than the AR, including the magazines. It's also the most successful and battle-proven bullpup made. And you have the benefit of (with the 20" barrel mounted) having a rifle that is as compact as an M4, but with a barrel long enough to provide full lethality from 5.56x45mm.
 

дядя Боря

kiwifarms.net
ARs are direct gas impingement. The AUG is a short stroke gas piston. The AUG's trigger isn't that bad, and it's a far more robust and rugged design than the AR, including the magazines. It's also the most successful and battle-proven bullpup made. And you have the benefit of (with the 20" barrel mounted) having a rifle that is as compact as an M4, but with a barrel long enough to provide full lethality from 5.56x45mm.
yes, like I mentioned in the post that you quoted, it is gas piston AR. Trigger looks like two steel rods simply going back to the trigger pack. I don't know how well that works when rifle gets dirty. I have a couple of old kits and it looks atrocious. Otherwise, like any bullpup, you got that length advantage.
 

The Dude

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yes, like I mentioned in the post that you quoted, it is gas piston AR. Trigger looks like two steel rods simply going back to the trigger pack. I don't know how well that works when rifle gets dirty. I have a couple of old kits and it looks atrocious. Otherwise, like any bullpup, you got that length advantage.
The trigger works fine when dirty. There's little to no carbon fowling since it's a piston design and not shitting where it eats like an AR, and the internals are pretty well sealed up from external debris. And as I've said, the AUG has been used more than any other bullpup in militaries and law enforcement. The Austrians, Australians, Kiwis, Irish, and others have issued the AUG as their infantry rifle. It's been to the sandbox during the GWoT and has earned a reputation of being reliable and rugged. Yeah, the trigger isn't as good as those found on decent ARs, but it's perfectly serviceable for a fighting rifle. On military and civilian transferable F/A AUGs, they have a progressive trigger. That means instead of a selector switch the trigger controls whether the rifle fires a single shot or full-auto/burst. Pulling the trigger half way will fire a single shot. Pulling it all the way will fire burst/auto. Because of that, the trigger is a bit long and squishy, but not terrible. You get used to it and learn to predict when it will release. I've felt worse triggers on some HK-style roller locked rifles, especially the cheaper knock-offs and parts kit guns (obviously that doesn't go for rifles that have precision trigger packs like the MSG-90 or PSG-1). There are also services and upgrades out there to improve the trigger pull on the AUG, but I've never felt the need for them. If having a crisp, tuned trigger is important to you, then the AUG isn't the rifle for you. For me, the pros outweigh the cons. I love my AUG.

Edit: never mind. I misread. My apologies.
 
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TerminalTryHard

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It always surprised me that bullpups didn't take off more in America, on paper they seem like a great way to circumvent the NFA's restriction on SBRs.
 

The Dude

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It always surprised me that bullpups didn't take off more in America, on paper they seem like a great way to circumvent the NFA's restriction on SBRs.
I mean, they're popular enough. There are several on the market. Most of them are really only usable if you're right handed, so that's one knock against them. And the AR in all it's various guises rules the roost due to it's modularity, flexibility, and lower cost compared to what most bullpups cost. And some people don't like them or think they feel awkward to use. They definitely aren't for everyone.
 
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Club Sandwich

kiwifarms.net
shitting where it eats like an AR
AR's do not "shit where it eats": re-examine how the action and gas system work, excess gas is vented out of the interior of the fluid gas piston before the bolt unlocks, leaving only low pressure gas in the barrel to bleed backwards towards the negative pressure area left when the bolt carrier group cycles rearward. all similar self-loading rifles will have this negative pressure area that will attract lingering gas from the barrel.

also, the AUG is a modified AR-18 based tappet system, which is a variation of the short stroke piston system that uses at least a two part assembly (a fast-moving lightweight piston to impact the operating rod). a "typical" short stroke system would be something like an M1 Carbine which directly pushes the piston a short, violent distance with gas pressure (the operating spring guide rod never actually touches the piston itself).
 
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Terrorist

Osama bin Ladkin
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Neat thread and my, uh, friend in Langley really likes it. Keep up the good work and remember to provide serial numbers too (unless you were a bad boy and filed them off).
 

дядя Боря

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...And as I've said, the AUG has been used more than any other bullpup in militaries and law enforcement. The Austrians, Australians, Kiwis, Irish, and others have issued the AUG as their infantry rifle. It's been to the sandbox during the GWoT and has earned a reputation of being reliable and rugged. ...
I know that they are widespread, but being present and in service doesn't mean much shit. So is SA80 and it's a piece of shit even after Germans "fixed" it.


AR's do not "shit where it eats": re-examine how the action and gas system work, excess gas is vented out of the interior of the fluid gas piston before the bolt unlocks, leaving only low pressure gas in the barrel to bleed backwards towards the negative pressure area left when the bolt carrier group cycles rearward. all similar self-loading rifles will have this negative pressure area that will attract lingering gas from the barrel.

also, the AUG is a modified AR-18 based tappet system, which is a variation of the short stroke piston system that uses at least a two part assembly (a fast-moving lightweight piston to impact the operating rod). a "typical" short stroke system would be something like an M1 Carbine which directly pushes the piston a short, violent distance with gas pressure (the operating spring guide rod never actually touches the piston itself).
I don't think so bro, not AUG owner, I just got a kit, but piston is solid on to carrier. I have AR180 tho.



the whole shitting part ... depends on ammo a lot. Shoot some Barnaul shit and try cleaning "urethra" of that gas tube. US ammo is pretty damned clean, but that's because it's higher quality because supply is plentiful. In tought times of scarcity, quality goes down real fast.
 

Club Sandwich

kiwifarms.net
piston is solid on to carrier. I have AR180 tho
that isn't the piston: the piston is a small piece directly acted upon by the gas from the gas siphon / gas block. in the gas block assembly is the gas plug (turnable piece for takedown and adjustment) the piston (the moveable part that the gas acts upon with a piston ring to generate pressure and convert hydraulic motion into direct mechanical motion), and the gas piston spring which let's the piston return to the neutral position.

edit: that appears to be a 9mm conversion of the AUG, which may be direct blowback or short recoil operated and will not possess a separate gas system at all. doesn't appear to be locked breech either.

i have a 1986 AUG A1 imported as a reference weapon for film production (this particular SN was used in Robocop).

1594182816541.png


the fixed portion on the carrier is the operating rod, connected to the carrier. the piston is energized by the expansion of gas in the gas chamber formed by the gas plug, gas block, and piston. the piston violently moves a short distance rear-ward striking the operating rod to transmit mechanical force to the rod and the bolt carrier assembly. this is the essence of a short stroke tappet gas system.

the whole shitting part ... depends on ammo a lot. Shoot some Barnaul shit and try cleaning "urethra" of that gas tube.
yes, ammunition quality varies greatly, that's also not what is happening. fouling is generally a combination of carbon and gliding particles (copper, brass, et c) that are carried by the gases from firing a cartridge. often these gasses will also have unburnt powder, powder residue, and primer compound (typically a salt, which can be corrosive or not).

the hot gases expand in in the barrel, carrying this fouling and as they expand, they push against the interior of the case in all directions, the bolt face, and the rear of the bullet. the "plug" formed by the bullet will travel down the barrel and eventually past the siphon in the gas block and exit the barrel. the gases though have a brief moment to also enter the gas tube (path of least resistance). the amount of time between when the bullet is functioning to energize (pressurize) the gas system and when it exits and depressurizes the gas system is known as dwell time. it is in this short amount of time that the pressurized system uses the expanding gas as a source of mechanical energy to drive the action: namely to unlock the bolt from the barrel extension and rotate (via cam) the bolt to unlock and allow the cycle of firing to continue.

when hot expanding gases travel through the hollow gas tube, through the gas key, and enter the carrier, and create a fluid piston - this piston is formed by the expanding gases acting on the interior of the carrier (the chrome lined portion typically) and the rearward portion of the bolt itself.
1594183604381.png


note the area behind the piston rings on the bolt. this expanding hot gases are immediately vented out the side of the carrier via 2 or 3 vent holes at high pressure, which is the majority of fouling gases.
1594184439116.png


during this act of depressurization, the bolt is forced fore-ward by the initial expanding hot gases and the carrier itself rear-ward. because the carrier is on a three rail track, it cannot rotate. the bolt is then forced to rotate which unlocks the action at the moment pressure is low enough to allow it in the barrel and fluid piston, but still high enough to move the assembly rearward with some help from recoiling action. the action spring is then compressed to catch the bolt carrier assembly as it completes unlocking, extraction ,ejection, etc and the cycle of fire continues.

thus the vast majority of fouling gases are safely vented through the side of the carrier and the hard chrome interior of the carrier is largely unaffected as it is scoured by hot gases on each shot. the last shot doesn't have a following "scrub" and this is what will eventually foul the interior of the bolt carrier. what little gas remains is from the barrel (which virtually all self loading rifles will have as a consequence of mechanical design) and it is this gas and it's aerosolized carbon that can, with time, foul ammunition.

if you want to see what fouling gases would do to a case if they were directly exposed to the hot gases (which bakes on the carbon at high pressure and heat), look at something like a spent case from a G3 with a fluted chamber that allows gas blow by (fouled gas directly from the barrel). very very dirty.

there's some animation floating around that a troll incorrectly marked as how the internal modified direct gas impingement system works. it is entirely wrong.
 
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Particle Bored

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It's more common than you might think. Some ranges are really strict about dumb shit, but on the other hand, it's mostly because people do dumb shit and can't handle their gun.
Yeah, some ranges ban rapid fire (even double tap). Asked range officer why and he said people can lose control of their weapons. A Fudd angle could be that dumping can be a bit obnoxious if its generally a laid back range with Fudds using hunting rifles and whatnot, and hey, their court their rules.
So anyone gonna get Ruger's new beltfed bullpup lever action rifle?

My initial reaction was "Lolwut? Looks cool, but kinda dumb concept," but I'm much more impressed after seeing that its some random dude that turned his old 96-44 into a custom bullpup. This isnt a production gun.
 
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The Dude

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Decided to take a couple updated photos of my collection, or at least the "cool" guns in my collection. I've got a few others that aren't anywhere near as interesting, like a couple .22lr rifles, my Dad's old Remington 700 .30-06 Sprg., and his old Stephens 12ga.

Handguns are:
Heckler and Koch Mark 23
Dan Wesson Specialist (1911)
Sig Sauer P226 TacOps 9mm
Smith and Wesson Model 57

Long guns are:
Mk14 Mod 0 (I built it with an LRB barreled action)
Lewis Machine and Tool MWS308 (with two uppers)
Steyr AUG A3 with CQC rail system
Fostech Origin 12 shotgun.

I'm hoping to start my next build as soon as Freedom Ordnance releases their next batch of FM-9 uppers. It will be my first NFA item/weapon as I'll be SBRing it. And I'll be putting in a Fostech Echo Trigger. Basically build myself a poor man's submachine gun (kinda-sorta), only belt-fed!
 

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Exterminate Leftists

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That belt-fed upper is so cool, I've been really good this year, haven't spent a penny on gun stuff. Thanks to /pol/ of all places I picked up an MWS308, put a Nightforce 8-14 on it and bought a 19X and a 17L right around Christmas. I was just going to get the rifle but they were talking about bullshit with China, glad I did, look where we are now. Unironically thank you 4chan. I'm just too cheap to buy anything at panic prices anymore, spoiled by 2017-2019.
 
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The Dude

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That belt-fed upper is so cool, I've been really good this year, haven't spent a penny on gun stuff. Thanks to /pol/ of all places I picked up an MWS308, put a Nightforce 8-14 on it and bought a 19X and a 17L right around Christmas. I was just going to get the rifle but they were talking about bullshit with China, glad I did, look where we are now. Unironically thank you 4chan. I'm just too cheap to buy anything at panic prices anymore, spoiled by 2017-2019.
It's hard to beat the MWS308 (or any LMT products, really). For my money, it's the best AR-10/SR-25 style rifle on the market, and it even beat out the HK417 (and many others) to be adopted as the Brits DMR. I've heard rumors that LMT (and their British partner who handles things for the UK govt. contracts) began offering the 13.5" barrel because elements in the SAS wanted a rifle like the M4s/HK416s they've been using for a while but in a more potent cartridge. Don't know how true that is, but it makes sense to me.
 

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kiwifarms.net
Bought an assload of magazines because they’re still cheap. Mostly got cheap AR mags, but I also decided to splurge on 3 Wilson Combat 1911 magazines. I’ve been thinking about getting another 1911 because I really love my el cheapo ATI.
 
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