3 Reasons Pistol-Caliber Carbines ‘Outgun’ Everything Else........

• First, there’s no way I could hit those longer-range targets with the same speed and accuracy with a handgun. At the same time, there would be little noticeable speed/accuracy advantage in using a full-blown battle rifle.
• Second, he was able to hit targets with an effectiveness comparable to that of a handgun, but also have more maneuverability and speed.

2. You Can Run Them Seamlessly With Your Glock or Beretta
One of my absolute favorite parts about the Sub 2000 and the Cx4 Storm systems is the fact that they’re built for gorgeous integration with certain handguns. For instance, here’s a list of handgun magazines that the Sub 2000 will take (based on which model you purchase):
For the 9mm chambering:

• Glock 17
• Glock 19
• Smith & Wesson Model 59
• Beretta 92
• SIG Sauer P226

For the .40 S&W:

• Glock 22
• Glock 23
• Smith & Wesson Model 4006
• Beretta 96
• SIG Sauer P226

One of the reasons why I’d go with the Glock 19 or 23 models of the Sub 2000 is because it will accept those huge, 33-round Glock magazines. The G17 or 22 models aren’t able to accept mags from their smaller compact counterparts.
And whereas the Cx4 Storm might not have nearly the magazine diversity options, it’s still designed to accept your Beretta Px4 magazines because it’s practically the same exact platform as its pistol counterpart: the Px4. The only difference is the addition of the buttstock, the barrel length and the aesthetics.
Why is this important? Well, when situations get lively, I like things simple. One great way to promote such simplicity is to require only one type of magazine for both weapons.
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3. Comfy Ergonomics + Featherweight + Reflex Optics = High-Speed Lethality
I’m not saying that AR/AK systems are inadequate for CQB applications. I am saying that pistol-caliber carbines offer a few additional advantages over battle rifles for those particular scenarios. For instance, having mentioned the aspect of maneuverability before, here’s a huge reason why the advantage goes to the PCC on this point. Compare the weights below:

• Kel-Tec Sub 2000 – 4 pounds
• Beretta Cx4 Storm – 5.68 pounds
• AR-15 – 5.5 to 8.5 pounds

Granted, the featherweight AR beat the stock Cx4 by weighing in at only .18 pounds lighter. However, those weights aren’t based on a fully loaded weapon. And a 5.5-pound AR-15 is uniquely made for its weight, likely forsaking its own design capabilities to reach out and touch someone at 300 yards.
In that sense, you might as well just go with the Cx4 (and most certainly the 4-pound Sub 2000) for a run-n’-gun scenario. In most cases, your typical ARs should be about 6 to 7 pounds, with an overall standard length of 39.5 inches. Both the Cx4 and the Sub 2000, however, are about 29-inches from buttstock to muzzle.
This is one reason why the sheer ergonomics and weight would make a downright lethal combination, especially if a reflex-style optic were mounted. Essentially, that would allow the operator to engage a single target at stunning speed – and even move quickly to engage multiple targets in a single, fast-moving fight.
Final Thoughts
Super short, pistol-caliber rifles do have their place among the more lethal firearms. This is because force-on-force engagements often occur at closer ranges. Sure, it’s possible to get an exchange of fire out to 200 yards or so. But if each opponent has been tactically maneuvered into a range of 0 to 50 yards, that’s when the stakes become desperately high. Then it’s the best-trained and properly armed team that will be standing when the battle is over.