H.E.R.A Arms Glock Stock Conversion kit

[rifleman2000]

@Gutshot_John

I could definitely be wrong but what I think he was saying that with equal barrel length, the 9mm’s ballistics are improved by an SBR barrel where the 5.56 is reduced by it.

Though in looking at the weapon it seems that it’s just a standard length Glock barrel so the point is kind of moot without a longer one.

This is correct. I would rather have a standard pistol length barrel matched with a pistol caliber as opposed to a short barrel with a rifle round.

The pistol round still works as advertised.

The rifle round loses much of its zip, along with a very loud report and large muzzle flash.

[Gutshot_John]

@Iraqgunz

And I also believe that a 9MM SMG or a Glock with a long barrel would also cause penetration issues? Would it not?

Yep, I was only trying to clarify what I thought he said, not that I agreed it was a better choice. If I had the choice between this and the SBR’d 5.56, I’d go with the latter.

That said I don’t own an SBR and so I just use a Glock 17 for home defense.

[rifleman2000]

@kalikraven

This would be in the category for me as a FN PS90, and since that’s the case I’d go with the 5.7 over the 9mm.

There is a thread in the Ballistics forum that discusses the 5.7mm shortcomings compared to even the lowly 9mm.