Pistol Caliber Carbine

[GJM]

While 9mm is obviously less noisy and blasty than 5.56mm, it actually recoils slightly more in an AR, all else being equal. The recoil impulse is also "clunkier," probably due to the blowback operation. So while the PCC has a lot going for it, I would not say that softer shooting over gas operated 5.56mm is one of the benefits.

Have you shot a MPX, which is a gas system, not blowback?

[nalesq]

Have you shot a MPX, which is a gas system, not blowback?

Not yet, but I almost don't want to, because I'm afraid I'll end up with a bad case of the wantsies.

[GJM]

The blowback AR9 carbines, as you know, recoil pretty much directly related to power factor of the ammo being shot. With the gas system, the MPX is very different, and shoots extremely soft with a wide range of ammo. If you Google Taran Butler and the MPX, you will see where he says the MPX has 50 percent of the recoil of a top of the line blowback AR9.

[fatdog]

How is the seating of a magazine loaded to capacity on a closed bolt?

It seats fine on mine. All my 9mm AR magazines are C-products variants, they seem to have a little space/slack when fully loaded. Of course with a bullpup doing a speedload is not an easy thing with any mag.

[D.O.A.F.S.]

It seats fine on mine. All my 9mm AR magazines are C-products variants, they seem to have a little space/slack when fully loaded. Of course with a bullpup doing a speedload is not an easy thing with any mag.

Thanks, interesting I have a mixture of Colt, IWI, and PSA magazines.

[nalesq]

The blowback AR9 carbines, as you know, recoil pretty much directly related to power factor of the ammo being shot. With the gas system, the MPX is very different, and shoots extremely soft with a wide range of ammo. If you Google Taran Butler and the MPX, you will see where he says the MPX has 50 percent of the recoil of a top of the line blowback AR9.

Drat, I really hope I don't agree it's that much better, if I ever happen to shoot one. I'm already so heavily invested in the Colt 9mm AR at this point in my PCC life.

[45dotACP]

Do you really need a huge recoil reduction for a rifle in 9 sillymeter?

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[Grey]

Love the discussion. GJM, are you converting your new Sp5k to a sbr to run it in some pcc matches? Really want to get a pcc this year... so many toys so little money.

[GJM]

Do you really need a huge recoil reduction for a rifle in 9 sillymeter?

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Depends on what you are doing with it. For USPSA, I want the softest shooting PCC that is reliable and ergonomic. That is a want as opposed to need.

Love the discussion. GJM, are you converting your new Sp5k to a sbr to run it in some pcc matches? Really want to get a pcc this year... so many toys so little money.

I am going to see what Talionis figures out first.

[TAZ]

Do you really need a huge recoil reduction for a rifle in 9 sillymeter?

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Can't speak for everyone, but for me: need - not so much. Want - hell yes. Why wouldn't you want a feature that makes something easier to shoot? Unless the trade offs are huge bring as much recoil and muzzle rise reduction as possible.