9mm sub guns... Why??

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While neither is a sub-gun, my son has a SIG MPX in 9mm with a 16" barrel (and 30-rouind mags), and I have an upgraded Kel-Tec Sub-2000 (Gen.2) in 9mm, with a 16" barrel (and $9.99 33-round Glock magazines). He has a ball shooting his -- He's a big SIG AR enthusiast, but also has other AR-based guns. I have a ball with my Sub-2000. They are perform-alike guns in many respects, although his is prettier. We both run SIG Romeo5 red dots. I have maybe $650 in mine, including the SIG Romeo5 sight. He probably has three times that in his, including the same sight, and more expensive magazines.

Both seem to be reliable and equally accurate. I wouldn't hesitate to use mine as a home-defense weapon, if it was nearby. (I have several handguns in small gun safes elsewhere in the house; the one by my bed has a TLR-4 light/laser unit attached. Which one I used would arguably depend on which one I could grab most quickly.)
 
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What do you mean "sub gun"? A submachine gun?

Or do you just mean some sort of PCC (Pistol Caliber Carbine)?
 
Care to share the company?

I've got a Ruger PCC and love it. It's an adults 10/22.

I am curious who this company is that sellsnout immediately on their 9mm guns? Anybody?

Not for certain, but I believe OP is referring to the Extar line. Their 9mm showed up as being "in stock" at exactly 7pm EST this past Monday and Wednesday evenings after being out of stock for a couple of months. I was ready but before I could the form filled out, both nights, they were out of stock. By that time it was 7:05. Maybe they are only selling 10 at a time?
 
I don't understand the appeal of an AR "pistol" with an "arm brace" as a workaround for the SBR rules.

I guess the core question is: Why would someone want/need a shorter barrel in a shoulder-fired weapon? Two cases (I'm sure there are more) immediately come to mind.

First (since we're talking about pistol calibers) is that slower pistol calibers like 9mm and .45acp actually take a small performance hit out of longer barrels due to drag once the bullet runs out of gas in the barrel. So something like an 8" to 10" barrel is "ideal" for performance. (I don't think the performance hit is big enough to worry about, but that's just me.)

The second case I can think of where a short barrel is preferred (over a short OAL weapon with a full length barrel) is someone who wants to put a suppressor on their rifle and keep it compact without going to an integral solution that would prevent one suppressor (and one tax stamp) being used on multiple firearms.

In either case, SBRs cost a tax stamp or may be barred by state or local level regulations.
 
I guess the core question is: Why would someone want/need a shorter barrel in a shoulder-fired weapon? Two cases (I'm sure there are more) immediately come to mind.

First (since we're talking about pistol calibers) is that slower pistol calibers like 9mm and .45acp actually take a small performance hit out of longer barrels due to drag once the bullet runs out of gas in the barrel. So something like an 8" to 10" barrel is "ideal" for performance. (I don't think the performance hit is big enough to worry about, but that's just me.)

The second case I can think of where a short barrel is preferred (over a short OAL weapon with a full length barrel) is someone who wants to put a suppressor on their rifle and keep it compact without going to an integral solution that would prevent one suppressor (and one tax stamp) being used on multiple firearms.

In either case, SBRs cost a tax stamp or may be barred by state or local level regulations.

I've found that most 9mm ammo gains from 100-200 fps out of a 16" barrel.
 
No idea of the proper terminology as I really have had no interest in them. SMG, SBR, sub-gun, whatever.

It's the Extar EP9 and they release new ones to purchase online M, W, and Friday at 5:00 MST. They are sold out almost immediately.

I almost forgot about it today until I saw this thread and logged in at 5:05 MST and they were sold out. Maybe next week I can be fast enough and get one.

They apparently trigger leftist gun grabbers and Fudds, so definitely want one now... LOL.
 
I've found that most 9mm ammo gains from 100-200 fps out of a 16" barrel.

Yeah, it's still a net gain over a pistol, and looking at ballistics by the inch, it doesn't look like most loads on their chart drop off until the barrel gets long enough not to really make a practical difference. Even then, it's a minimal loss.
 
No idea of the proper terminology as I really have had no interest in them. SMG, SBR, sub-gun, whatever.
<chuckle> So-o-o-o ... you decided to start a Thread about an item for which you have "no idea of the proper terminology", but failed to either give a decent description or post a link to the item in question (or something like it) so that the actual subject of the Thread could be quickly determined.

Interesting approach. ;)
 
I looked hard at tbe Extar ... From what I have read .. They are great pistols..
I went a different route.. I found a new Keltec Sub2K Glock 19 version at a good price and secured the last one they had .. So far it has ran flawlessly with UMC 115gr FMJ ..
If I didn't have a Glock 17 LAV , I would went with the Extar ..

With the KTSUB2K with open sights and standard pressure 9mm, I can wack steel at 100yds .. and hit 2 liter pop bottles at 50 yds ..
My use for the carbine is HD & for road trips .... and maybe a possum ,groundhog ...

The 2nd generation Sub2k just feels better than the first gen
 
Buckeye63 said:
The 2nd generation Sub2k just feels better than the first gen

I agree, and I've owned both. Check out the MCARBO website for upgrades. The metal trigger and spring kit is pricey but worth it, and you can just do the springs. Cuts the trigger weight in half! (The factory trigger is crisp but heavy.)
 
<chuckle> So-o-o-o ... you decided to start a Thread about an item for which you have "no idea of the proper terminology", but failed to either give a decent description or post a link to the item in question (or something like it) so that the actual subject of the Thread could be quickly determined.

Interesting approach. ;)

Wow, offended, smug, and condescending... Interesting approach. lol.
 
Pistol caliber carbines are effective in HD scenarios. The MP5/UZI variations have been used by the military/police/counter-terrorism units for along time. Way better than aiming a pistol and more power. most 9mm ammo gains from 100-200 fps & about 50percent more energy out of a 16" barrel.
The cost factor makes target practice easier on the wallet. I can buy a box of 50 9mm for less than the cost of 20 rounds of rifle ammo.
My Marlin camp9 weighs 6lbs. and takes 20 round mags. Fun factor is high! Whats not to like?
 
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I've seen PCCs used in a steel shoot and they are blazingly quick and accurate compared to a pistol. Also quieter. A 16" barreled rifle caliber has more recoil and is stupidly loud indoors. You can practice more places with a PCC. The ammo is less expensive. That's pretty much the differences as I see them..
 
In anticipation of getting even older yet, started looking for ways to maintain effectiveness with pistol calibers. The PCC is much easier to maintain proficiency with than a pistol, handles large capacity mags easier and extends the distance at which am effective. Even if it is mainly used just for fun at the range. Ended up with 4.5 in sbr (stamped) in 9mm, which keeps the heavier 147 grainers subsonic.

Also have longer barreled ones, and increase in velocity seems based on how (powder type) the round is loaded. In 16 inch 9mm, a 124 grainer loaded with slow powders can approximate a 357 125 from shorter barrel. And alot easier to shoot accurately.
 
IMHO they're fine for plinking, training and probably work great for about any HD scenario. I just jumped on the Blackout bandwagon and think it's better for my use.
 
I may be a bit biased but I find them incredibly cool and fun to shoot. I have many different subguns as you call them, in a semi auto variant. Not true subguns in the full auto sense but I don’t really consider them carbines either. Some are SBR’d and some simply have braces since the new ATF ruling. Here are the reasons I have them:

1. Cheap on Ammo which means I get more range time.
2. They make excellent truck or car guns and from my experience are much better suited to the task of fending off something if the need ever arised, over a regular handgun. They are much lower profile in the car than a full size rifle would be.
3. I am simply blaziny fast and accurate with mine, much moreso than my handguns. Put it this way, imo, the old saying your handgun is there to get you to your rifle saying holds true here whether that be a full size rifle or a subgun.
4. I think they are excellent home defense, room clearing weapons.
5. I find them quite effective without zipping through things like a full size rifle round would. Effective range is 100-200 yds and when you think about it that is all you are likely to ever engage, ever. Inside most cities it would be less than this. In other words, I don’t need to carry around any of my 20 pound bolt action rifles as I’d never engage a target at 1000+ yards in any defensive situation.
6. With the ability to be able to shoulder one, it makes one much more accurate than they would be with a handgun.
7. Shooting a short, suppressed subgun with subsonic rounds with a red dot on it makes me grin, every time. It’s just plain fun and stupid quiet. If you still don’t get the compact size thing with suppressor, then see number 4 or the post above me.
8. Did I mention how much stupid fun they are?
9. Subguns like an MP5 are just iconic and something any real collector should have. Personally, I’ve wanted an MP5 ever since I was a kid and later on in life was able to use one. A semi auto variant is as close as I’ll ever get to the real deal.

Get one and try it. I’d bet you buy more.
 
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I have 2 Pistol Caliber Carbines and at least one of them go to the range with me everytime I shoot......They are a Hoot to Shoot!
 
FWIW, "back in the day" when the MP5 was more common, users (like me) never put them in the "auto" mode, except for "range play". Much like the M4A2 today. I did notice with my issued MP5, I had a "heavy thumb" taking it off safe, and it would sometimes find its way into the auto mode when I didn't want that. I researched the possibility of buying a semi only trigger group kit out of pocket, but it was more $ than I wanted to pay.
 
I have a Keltec Sub 2000 (Sub 2K) in 40 S&W . It’s a great compact rifle. I find the factory trigger to be acceptable to me. My workaround for a red dot was using the M-Lok as a place to mount a rail, then used the rail for an angled mount. It allows me to close the rifle without issues.

I acquired a CAA Gear Micro Roni for fun. When I got into suppressors, I wanted to adapt it for Suppressor use. I added a 10” barrel and it shoots every reliably with all sorts of ammunition. I had to gut the inside of the CAA Gear Micro Roni but it works for a Suppressor. In the hands of a novice, I have had friends hit steel targets at 25 and 50 yards without issues. Despite a shorter barrel, the points of contact are more stable. I have shot my CAA Gear Micro Roni, sideways, upside down, and one handed without issues.

Then I saw the latest shell that can fit multiple pistols that have a rail, calledmthe IMI Kidon Pistol Conversion.

I have no problem adding cans to my trust. I have more than a few.

But as the law allows a brace, for a pistol, then I’ll take that break. The SBA Tactical SBA3 Pistol Brace is an amazing Brace. Anyways, I have a Glock 17L Threaded Barrel that I am going to use for the Kidon. The problem with a Kidon is that there is a half inch shelf that prevents proper seating of a Suppressor on a threaded barrel.

The long barrels defeat that limitation.

I have considered an AR Pistol in 9 mm or CZ Scorpion Evo 3.
 
Managed to pick up the Extar 9mm variant last evening. They seem to hold up well (found a few posts of folks who reviewed them after 1000+ rounds) and, for just over $400, I had to give it a try!
 
I have to admit I thought from reading the title this was in the wrong section of THR, there is after all a board for tax stamp guns. I then wonder if the OP was talking about small 9x19 handguns like any number of half plastic pocket pistols.

Skimming through I am still not sure what we are talking about. Some talk about 9x19 carbines like MrMike's Marlin Camp9 and others seem to be talking about pistolized versions of guns like the AR 15.

So not sure what we are talking about.....so I guess I will wing it as well.

It the OP means 9x19mm carbines, I think they have a definite place for civilian use as both a recreational gun and a Home Defensive weapon. A 16+ inch barreled, stocked rifle is going to be faster to hit with for most folks than a handgun and 9x19 mm is cheap enough to practice with and considered okey dokey for anti personel use. It is no bigger than a legal unstamped HD shotgun and shoots more often and faster. It is fun to shoot on the range and cheaper than a traditional rifle caliber. What is not to like?

If he means the pistolized carbines, well, "everyone to their own tastes" said the old lady as she kissed the cow. Jiminy ,I thought taking the stock of a 1928 Thompson for blazing away stupidly (especial with the 50 round drum in oil burning insanely long bursts) was a hoot, MP 40 with the stock folded? Yeah buddy. a Host of other folders all short and buttstock free, whee! But as toys. I did train to use my AR-180 inside 25 yards with the stock folded, but honestly if I was not wearing a flap holster drawing and engaging with a handgun was generally faster to first round on target unless I got the stock open and used it in a traditional manner. I also shot one of the Enforcer type Cut down M-1 carbines in the late '60's or early '70's and was so impressed ( and I LOVE the M1 Carbine) that I dashed right out and DID NOT buy one and announced that I would prefer no one give me one. I did think it kind of neat in a show and tell way and saw its value in police work at the time as something to put on a show of force with to discourage say rioting with, sort of a Psy war sort of thing more valuable for being seen than fired.

My first real experience with pistolized on purpose modern guns was the MP5k a cut down and butt stockless (later folks made folders for them) of the MP5 that was being used by a German entry team with the Frankfurst Special Police Group in 1982 or so. Some firing was done two handed, a very little one handed and most from a sling. I was somewhat underwhelmed. The German Team did one thing that I can not imagine a LEO or home owner doing here, they trained to actually engage with fire, closed doors and large pieces of furniture. While the normal MP5 guns of that team where fired on semi, the MP5k that day was fired in 15 round bursts (the entire short carry magazine) , striving for sort of a figure 8 pattern on the suspected object. This was BTW how the female terrorist in the toilet at Mogodishu was killed, through the door.

State side I got one of the early Tech 9 pistols to play with a bit, and found that despite the 32 round magazine that I could make more A zone hits in less time at seven and fifteen yards with my CZ75 than with that thing. Someone showed up at the range with a Leder, the Austrailian AR-18 "simplified" and not surprisingly it was a lot like firing the AR-180 folded but with less barrel out front.

Eventually I got to shoot one of the early AR pistols in .223 with no recoil spring tube and honestly I would rather have had a 9x19 mm handgun.

Now everyone makes a AR, AK, Strumgee-sumpin' with an "arm brace" Honestly If someone wants one of those in 9x19 instead of .223 or 7.62 M43 more power to them, what's the difference?

my biggest concern about the arm brace guns is that they might be banned tomorrow morning. No? let me just say "bump stocks"

Now if the OP actually meant SMGs, hey I like .45ACP as much as the next guy, but the 9x19 are easer to shoot generally in those short 2 to 3 round burst that are called for. I can attest that walking into a near riot situation with 12 on three and racking an MP5 will absolutely make you the center of attention and cause atleast a few of those dozen trouble makers to find Gohd and reconsider their sinful ways. Of course raking a 12 gauge pump may have had the same effect, but this was an MP5. OK when the shooting actually starts I would rather have an Uzi, MP5 or even an old MP40 or heck even a STEN than a 9x19 service pistol....but if I have to carry around a Seven to eight pound gun on a sling all day I would just as soon it were a rifle caliber and had a stock at least available.

So have I confused things enough?

-kBob
 
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