This is the ideal 21st century assault rifle. You may not like it, but this is what peak performance looks like.

>>64005749 (OP)
They hated him because he told the truth.

Even the RDB is objectively better

>>64005767
Bottom eject is unreliable because it necessitates a 2x longer bolt throw for a successful cycling compared to conventional ejection.
Also can't look into the action of the gun as easily which is important for chamber checks and diagnosing malfunctions.

Bull pub is not a working consept. AR-style where clip is still front but stuff goes inside the stock is the peak. Thats why militaries still go for that ar. Even China is going for similar and giving up that ajward ass clip solution.

>>64005807
ESL-kun....

>>64005749 (OP)
>This is the ideal 21st century assault rifle.
It isn't.
>You may not like it,
I don't
>this is what peak performance looks like.
It isn't.

>>64005749 (OP)
The ar15 is already objectively perfect.

>>64005796
Longer bolt throw doesn't equate to unreliability. If anything, the bolt has longer time to gather momentum from the spring force and strip the round and chamber it reliably.

Constant recoil systems have extended strokes and they have no issues. Inversely, running a system too fast or too short, dumping a ton of energy in the bumper bounce, and not giving a system enough of a chance to pick up velocity makes things unreliable. See shortened buffer systems compared to an A5 or a rifle length.

>>64005796
It doesn't necessitate anything. Just because the RDB has a long throw doesn't mean it's intrinsic to downward ejection as a concept. Look at the P90.

>>64005749 (OP)
you got the optic right and the putting the laser, IR illuminator and flashlight in a single unit. I won't weight in on the bullpup thing but CAT suppressors suck

>>64005807
let's be honest, the chink went with an AR-15/AK style rifle again because they know damn well it's a drip competition with how 'modern cool' you're grunts look

>>64005749 (OP)
assault rifles are largely irrelevant on the modern battlefield, small arms account for just 5% of combat deaths, with machine guns making up 70% of those, followed by sniper rifles in a far second. Infantry only exists to physically occupy territory and be bullet sponges for artillery, if they had bolt action rifles, it wouldnt change much

>>64006159
For optimum reliability you want to maximize the length of the bolt throw where the bolt has already cleared the magazine and can therefore reverse at any time with excellent reliability. This way even if the gun is a bit undergassed for any reason it will still cycle well. Constant recoil guns do this.
The RDB on the other hand will have a failure to eject if the bolt doesn't cycle all the way back.
Now admittedly the RDB does benefit from one of the good things about a long bolt stroke, which is giving the magazine plenty of time to push up the stack of cartridges even under non ideal circumstances.

>>64006180
I was talking with the presumption that the magazine is also under the gun in the way.
P90 style ejection is superb.

>>64006220
>For optimum reliability you want to maximize the length of the bolt throw where the bolt has already cleared the magazine and can therefore reverse at any time with excellent reliability
That's complete bullshit and you know it. In terms of ejection, sure, requiring more length before ejection can occur can cause issues, but you'll also have issues if you stop the bolt just shy of stripping a round. Not letting your reciprocating mass gain any speed, you're losing any momentum benefit and relying on spring force alone.

>Constant recoil guns do this.
Constant recoil guns have longer travel. The more time/distance you give a system to do its thing, the more chance it has to be reliable because it's tolerance band for function is wider.

>The RDB on the other hand will have a failure to eject if the bolt doesn't cycle all the way back.
True. But shortening your system to be at the mechanical limits of function isn't a good thing either, that's pretty much true of any spring-loaded reciprocating design, like a suspension.

Again, look at what happened when the rifle buffer system was shortened to carbine, issues started to appear immediately and had to be addressed by slowing down the system and increasing mass, and therefore BCG momentum. Your dumb opinion neglects momentum and thinks shortest travel (and therefore maximum cycle velocity for a similar spring-mass ensemble) is optimal.

>>64005807
>clip

>>64005749 (OP)
That’s not even the ideal bullpup

>>64005749 (OP)
>sopmod patch
>but no soppo
weak

>>64006421
>That's complete bullshit and you know it.
It's completely true. The Germans made it popular first with the MP40 which the soviets noticed and copied for their next subgun design, the PPS-43 and after that the AK rifle.
>shortening your system to be at the mechanical limits of function isn't a good thing either
The point being that the RDB system is longer but does not provide the same reliability benefit against short stroking as does just a long bolt throw.
>Again, look at what happened when the rifle buffer system was shortened to carbine
The AR-15 stroke length is not determined by buffer length but by the gas key. That's why Jim Sullivan designed a bolt carrier for Surefire with a smaller gas key to allow a longer bolt throw.

If Stoner had designed the AR with a longer bolt throw to begin with they wouldn't have had half as many problems due to poor gassing in Vietnam.

>>64006425
>not an AUG
Lol

>>64006479
>The AR-15 stroke length is not determined by buffer length but by the gas key
What stops the stroke, the buffer hitting the extension, or the gas key hitting the lower? If you take out the gas key, will the BCG stroke more? Didn't think so.
>Jim Sullivan designed a bolt carrier for Surefire with a smaller gas key to allow a longer bolt throw
The kit also includes a smaller buffer, you dumbass

>It's completely true. The Germans made it popular first with the MP40 which the soviets noticed and copied for their next subgun design, the PPS-43 and after that the AK rifle.
You're dodging

>>64006479
>Jim Sullivan designed a bolt carrier for Surefire with a smaller gas key to allow a longer bolt throw
For someone arguing that a shorter bolt stroke is better, that's a really weird thing to bring up.

>>64006187
>CAT
Its a Griffin M4SD-L, needed something quick to throw on. OP reposted my raifu >>64005738. CAT stuff is overhyped and reddit tier, not worth the cost, but not complete shit.

>>64006440
>no soppo
The junya have broken containment. I take no responsibility for their actions.

>>64006594
uhhhh are you sure you're replying to the correct post?

>>64006576
All AR-15's using the standard BCG have the same bolt stroke. ie. claiming that the move to carbine length buffer tube and buffers made the bolt stroke shorter is complete bullshit because the STROKE LENGTH IS THE SAME
>You're dodging
what? a longer bolt stroke behind the magazine leads to a more reliable action, it's literally that simple.
>>64006594
>arguing that a shorter bolt stroke is better
What are you talking about?
My main argument against the RDB is that while it does have a long bolt stroke it doesn't gain benefits from that because it *has to have* a long bolt stroke to not jam which makes it no better.

>>64006576
NTA, but any joe shmo can shorten a buffer, but doing so will only get you a few millimeters of stroke before you start hitting the gas key. To make any sort of meaningful difference, the gas key needs to be engineered, and yes, paired with a shorter buffer. After that, you begin to run into the problem of the bolt head going behind the hammer, which would necessitate a different hammer or bolt design to increase the stroke further.

we were so fucking close

>>64005749 (OP)
>bullpup
>tranime
>retarded opinion
Checks out

>>64007413
Does that can actually work?

>>64006479
Based guy-who-knows-what-the-OBC-is.

I can only assume the civilian market is retarded and doesn’t know what’s good for them, so they didn’t buy those carriers, and so surefire had to discontinue them. Same with the quad stacks,

>>64007852
It's trying its best but it's attached to a 19" .270 WSM equivalent

>>64007413
Maybe it's just me but I really don't like this chode.

>>64005749 (OP)
I unironically love bullpups that looks lie just one big slab.

>>64007430
>>>/arfcom/

>>64006196
>demand that all soldiers carry intermediate rounds
>shorten the barrel until it's just a very powerful SMG
"Huh, no one gets kills with assault rifles any more. Weird."

>>64010369
>shorten the barrel until it's just a very powerful SMG
wdym
Even setting aside the Sturmgewehr being slid under der Fuhrer's mustache by calling it a machinepistole, the AK was explicitly treated as an SMG with more range and lethality by the USSR. Treating assault rifles as "a battle rifle, but scaled down so you can carry more ammo and control it better on full auto" is a NATO contrivance that's unsupported by the facts of basal intermediate-caliber rifles.

>>64010414
Different backgrounds anon. Germany and the soviets were trying to make a better SMG while the west was trying to make a better rifle

>>64010414
I was talking about the M4.

>>64010163
The future is soon, old man.

>>64006043
>kills it's own users
Ooooooof

>>64015301
ESL