.357sig pcc

[Todd.K]

Then it’s not the bolt cycling over the top of the magazine.

[yoni]

i am sending it to someone that builds 357 sig uppers to see if he can get it running

[yoni]

So the guy that builds DI 357 sig uppers that I sent the upper to, could not get it to run in a safe manor.

I am thinking about dumping the whole project.

If I feel the need for a pistol PCC combo, I just might drop back to 9mm and admit defeat on the 357 sig combo.

[robbins290]

So the guy that builds DI 357 sig uppers that I sent the upper to, could not get it to run in a safe manor.

I am thinking about dumping the whole project.

If I feel the need for a pistol PCC combo, I just might drop back to 9mm and admit defeat on the 357 sig combo.

I would have from the start. There is a reason no one makes one. And the fact you had to make special rounds for it, defeats the purpose of having a pcc.

[georgeib]

I would have from the start. There is a reason no one makes one. And the fact you had to make special rounds for it, defeats the purpose of having a pcc.

I don't know... nothing ventured, nothing gained. If this idea can be made to work, it has the potential to create quite an interesting niche in the PCC market. A PCC with rifle wounding capability is a worthy pursuit. I'm rooting for Yoni to succeed.

ETA: It's probably too expensive for an individual to undertake, but I think a delayed unlocking mechanism of some sort is the solution. Direct blowback just won't work with 357 Sig.

[1168]

I don't know... nothing ventured, nothing gained. If this idea can be made to work, it has the potential to create quite an interesting niche in the PCC market. A PCC with rifle wounding capability is a worthy pursuit. I'm rooting for Yoni to succeed.

ETA: It's probably too expensive for an individual to undertake, but I think a delayed unlocking mechanism of some sort is the solution. Direct blowback just won't work with 357 Sig.

Yeah. I think a RDB .40 BCG with a reamed 9mm barrel is the only real move. The RDB .40 bolt looks to have more delay than the 9mm one, also.

Edit: damn, that’s what he was trying I think. For some reason I thought he was trying to do straight blowback.

[yoni]

ETA: It's probably too expensive for an individual to undertake, but I think a delayed unlocking mechanism of some sort is the solution. Direct blowback just won't work with 357 Sig.

I was using a CMMG radial delayed blow back. CMMG 9mm barrel reamed to 357sig, 40S&W bolt.

The next step if I take it will be having a DI 357sig upper built. I have to think about it.

Or just buy a KPOS and plug the 6 inch 357 Glock 35 into it.

I think the concept is still sound, the DI upper is like $1100, the KPOS and SBR stamp would be like $500.


Regarding the question of special ammo, yes the carry ammo is the Underwood Leighi Defense but for practice any ammo would do.

I just thought of an advantage of going KPOS, it would be easy to plug the 9mm clone of my 357 sig Glock into it for practice.

[Todd.K]

I’d still like to see a picture of the feed ramp and where the magazine presents the rounds.

[ABNAK]

I know it's not an AR type weapon, but the META Tactical Glock bullpup conversion might end up being the best bet. I called and asked them if they were going to do one in 357Sig and the said it was "on the list". It comes with a 16" barrel and you use the rest of the pistol in it. *Maybe* would require a heavier recoil spring but for function you're using the base Glock just with a longer barrel. Being a bullpup has it's own obvious advantages regarding length.

[yoni]

Have some concern over the accuracy of the META bullpup, I have seen reports that the accuracy sucked.

Regarding photos, the parts are already in the mail back to me, so no photos.