MP7 In 5.56x45

>>33295310
how about showing us the actual CAD drawing, faggot.

>>33295310
Velocity would be ridiculously low. Better in 300blk or 7.62x39.

>>33295382
it's a carbine with a 18-14.5" barrel

>>33295425
Then I'm not sure what you're trying to paccomplish. I figured you were going for PDW type firearm. I think a magazine outside the grip is better for most circumstances. I am interested in seeing the CADs, however.

>>33295490
What I'm trying to accomplish is a compact carbine. It's the first sentence.
A carbine that loads through grip....be worth the compactness.
Basically I'm just wondering if having more fire power in a compact space is worth the trade off of reduced magazine capacity.
It'd be gas operated and possibly have a folding stock.

>>33295490
this

>>33295310
>and if the magazine loads rounds at a 50 degree angle
Good fucking luck getting that to feed reliably.

>>33295530
>Basically I'm just wondering if having more fire power in a compact space is worth the trade off of reduced magazine capacity.
Why bother when you can have a 10.5" barrel in a bullpup carbine that's the same length as an MP7 with the stock extended? Also see KAC PDW and P90. Your idea is probably the least capable out of all of them.

>>33295530
post a pic of your hands

>gorilla sized grip

Nigga just buy a bullpup if you're that concerned about OAL.

>>33295541
leave the autism to me
>>33295562
purely because I don't like bullpup config
>>33295567
>>33295572
5.7 hand gun has pretty big grips.

>>33295530
your looking at like 2-3 inches less OAL. compared to a standard rifle
if you want to add a folding stock you have to be real fucking clever with the gas system since you have to stop that bolt in a much shorter distance.

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>>33295562
This. It'd be easier to adopt something like the Magpul PDR's design. It uses standard mags and you won't run into the issue of over-gripping a magwell potentially causing feed issues.

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>>33295608
Fuck, let me post a non-retarded pic.

>>33295589
>leave the autism to me
Are you also planning of having a 50° grip angle?

>>33295615
straight mag and grip, like uzi.

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>>33295608
Plus your OAL can down as low as 10.5" if you need to. I honestly wouldn't go shorter for a rifle caliber carbine. The muzzle flash and sound is pretty damn gnarly, even with a linear compensator.

>>33295634
see>>33295541

>>33295310
That would have quite a few problems, the most obvious being the mechanism that would be tasked to feed the rounds, as any angle over 45 degrees to the barrel's axis will cause the bullets to naturally want to slide in the opposite direction on a normal feed ramp.
There is also the problem of wear and tear. In a normal magazine, the rounds avoid dragging along the front and back of the inside of the mag as they are pushed up through it. This would be a problem with your magazines, as the spring would actually be pushing the rounds out to the front and back of the magazine more than it is pushing them up, causing wear and tear on the cartridge rims, bullet tips, and of course the mag itself. Though it might not be too much of a concern in an smg, this would obviously decrease accuracy. I suspect it would also necessitate a much stronger spring.
And besides, other than cool factor, what exactly would the purpose be of a 223 mp7? Seems just about as useful as an obrez versus a normal nagant to me.

>>33295670
The rounds would be at around 50 degree angle inside the mag.
An angled mag stripper assist would push the round up so the bolt can grab it.
I guess the gun would be for people who are opposed to using bullpups. It'd be easier to load in a vehicle than a bullpup.

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>>33295310
>Would a carbine that loads through the grip in 5.56x45 be worth the compactness if a standard magazine

>>33295738
You need a big grip for that. This pic is pretty much what I meant.
Cool to see it's been done before.

>>33295713
>An angled mag stripper assist would push the round up so the bolt can grab it.
Do you mean a system similar to the Mars or the Boberg where the cartridges are extracted out of the magazine from the rear with a claw around the rim? Otherwise the system you're going to is going to be more mechanically complex than a bullpup, require a larger internal feeding mechanism than a bullpup, will require a large amount of space behind the grip regardless because you're feeding 5.56 and not 4.6x30 (which means little to no space for your folding stock), and will have an inherently unreliable magazine.

>>33295738
>Tests in the Philippines proved the gun too uncomfortable for the average shooter to fire well and it never made it beyond the prototype stage.
Filipino confirmed manlets

>>33295310
I think at that point it wouldn't matter if the mag was in the grip and you might as well make a bullpup carbine. What are you trying to accomplish with this magazine grip thing?

>>33295310
Show drawing nigger

>>33295310
No. The entire point of a shorter intermediate round is that it can fit into smaller magazines, is lighter, an they have less recoil so they can use a smaller and lighter gun.

A Mk18 or X95 bullpup is about as small a you want to go.

Thank you for all who replied.
While this was a cool idea you made me realize it doesn't have enough practical application.
I'll just stick with bullpup designs for 5.56.

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>>33295738
BTW if you don't know lead designer of Interdynamics is now head and lead designer of Kel-Tec.

>>33295958
It all makes sense now

>>33295608
>>33295614
I've been wondering. What if you used the RDB's ejection system in a PRD-type frame. That way you get an itty-bitty PDW that doesn't fling brass in your face.

>>33295310
Pic or fuck off

You've obviously never held an MP7. Form factor would never work in 5.56, it would be significantly larger.

Fantasize elsewhere.

>>33295985
Hrm, i'm not too familiar with that system, I know a lot of bullpups lately have been working on trying to make brass ejection more of an important feature, especially for lefties.

>>33295310
Bumping for interest

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>>33295985
the PDR is already forward ejecting, the ejection port is above the grip

Bottom eject works but it's waaay longer so you lose the compactness. The receiver needs room for the length of the bolt carrier and the brass. You can use the magazine as a visual reference, see pic

Now if you really wanted bottom ejection you could use an entirely different locking system - like the TKB-022PM, which has a falling-block style breech face and a very short feeding/extracting piece. It would still be longer than the forward ejecting version though

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>>33295589
>5.7 hand gun has pretty big grips.
still way smaller than 5.56

>>33295958
No shit? That motherfucker is like John Pederson, god tier but literally a who to even gunfags.

>>33295310
Hey buddy, 5.56 MARS is a perfect PDW cartridge that can give you 5.56 ballistics from a shorter barrel

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>>33297932
Forgot picture

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>>33295530
>compact carbine
>14.5-18 inch barrel

>>33297932
Very cool! Now just make the case OD a little bigger!

>>33298007
The MARS is basically a shortened 5.56 cartridge that can use 55gr or higher projectiles. Of course, we can grab a 5.56x45mm case and shorten the case length to around 35-39mm, giving you much more space for propellants and heavier boat-tail bullets like the 77gr Mk. 262. Here's a detailed overview of the 5.56x30 MARS
>http://www.smallarmsreview.com/display.article.cfm?idarticles=1239

>>33295803
Actually thinking feminine pinoy hands could effectively grip that