ultimate lightweight somewhat concealable pdw

[deni zen]

Hi all I'm new to the forum and pretty much clueless about reloading , propellants etc.so let me just throw this out there. How do you get 30 rd or so capacity, 6 inch barrel or less, 2500 fps or more velocity.reloadable cartridge.could you neck something down, or us there a 22 mag style cartridge that's not a rimfire where a PMR 30 type gun would do it.?just fantasy land but how would you go about designing is building something like this .5.7 fn is the closest I could find. I really like the PMR but its a little light on power I'm thinking . Thanks

 

[Deus Machina]

Yeah, the 'Five-seveN' (that is kind of a fun name) is the closest you're likely to find there. Thing is, in anything concealable or a handgun of any sort, you're going to either need a larger casing which would limit your capacity, or fall short on velocity. No big deal, many rifles don't have that velocity either.
If you don't need it quite that small, something in 5.56 may fit the bill, but that's going to be larger and need some tax stamps to be legal.
On the other end is .22TCM, which will limit you on mag selection and runs a little slower than 5.7, but tosses a slightly heavier round.

It's a fun thought experiment, but by far the easiest thing would be a 5.7 with a full mag or an SBR'd P90, AR, or similar.

 

[cluttonfred]

Or you could go really old school and set up an M1A1 Carbine (paratrooper folding stock) in .22 Spitfire (aka 5.7mm Johnson). The factory load was a 40 grain bullet at 3000 fps for almost 800 ft lb of energy or half again as much power as the FN 5.7x28mm.

I wonder where we'd be today if Johnson had convinced the army to convert M2 Carbines to .22 Spitfire back in 1963 just in time for the Vietnam War?

See http://www.sandygunworks.com/Articles/The57JohnsonSpitfire.aspx to learn more.

 

[Shadow 7D]

There isn't one.
But I'm sure you'll find something you like
a suggestion, common caliber, 5.7 is nice, but then so is Armscor .22TMC, and it comes in a 1911 (with a spare 9mm barrel), or you can go Classic, and get a Tokarev, with the advantage of getting a 9mm barrel for it also.

Lastly, COMMON caliber, 5.7 is nice and all, but either you reload, or you pay an awful lot...

 

[Quiet]

5.7x28mm is also a difficult to reload properly.
Bad reloads account for all of the FNH Five-seveN ka-booms.

 

[AR15activist]

.22 tcm?

 

[strambo]

You could build an 8" barrel .300 blk AR with one of the super short pdw style stocks. Meets your criteria with readily available parts except 2" longer barrel.

 

[cluttonfred]

What about a commercial M1 Carbine-based pistol like an Iver Johnson or Universal Enforcer?

 

[Drail]

Saw off an M 16.

 

[AR15activist]

 

[Deus Machina]

Is that an MP7? Never realized just how small those are. Wow.
Now if only a civilian could get one.

 

[USAF_Vet]

Is that an MP7? Never realized just how small those are. Wow.
Now if only a civilian could get one.

H&K 97, closest thing we peons will ever get. You could stamp it and register it as an SBR, but we'll never have the happy switch.

 

[JeeperCreeper]

Master Piece Arms... MPA57SST

Pretty much a MAC10 in 5.7

 

[cluttonfred]

And the MPA pistols will take a folding shoulder stock if you want to pay for the tax stamp.

 

[ugaarguy]

H&K 97, closest thing we peons will ever get. You could stamp it and register it as an SBR, but we'll never have the happy switch.

You do realize the HK 97 was an April Fools joke by TFB last year, right?

Outside of 5.7x28, there's always 9x25 Dillon, which is a custom barrel swap away on any 10mm Glock or 1911. With a Kriss Mag-Ex (intended for 45 ACP) you can convert the 15 round Glock 10mm mags to somewhere around 30 rounds. On an 2011 the 140mm length magazines just barely protrude from the grip and they'll hold 18 rounds in 10mm (and 9x25 Dillon by extension). That cartridge is a hand load only proposition, but out of a 6" bbl it'll push a 90 grain FMJ or JHP to 2100 FPS, which compares quite favorably to the 5.7x28 getting 2350 FPS with 28-31 grain pills.

You could always hope that someone picks back up on the .224 BOZ concept.