1911 .22 Conversion Slide Issue....

[TurboChrisB]

So I picked up one of the sig branded 1911 conversion kits that were on sale for a while a couple months ago...and put it on a full size .45 RIA pistol that I have. It function tests well and using the supplied orange plastic bullet that came with the kit it ejects rounds perfectly. But with live ammo it doesn't eject the rounds at all. I've tried 3 different brands ammo including CCI mini mags.

Tips on what to check first?

[hotrail]

I put the same kit on a Sig 1911 and it was flawless with good ammo (including mini mags) and occasionally FTE with some bulk Remington.

The data notes it is for "Series 80" 1911s. Can't recite from memory how Series 80 differs from earlier iterations of the 1911. You might want to start by understanding the distinction of Series 80 and whether your 1911 is Series 80 or not. If not, I think I read about a mod somewhere.

[Chaos47]

It wont eject when fired? Or are you hand cycling the live rounds too?

[TurboChrisB]

I put the same kit on a Sig 1911 and it was flawless with good ammo (including mini mags) and occasionally FTE with some bulk Remington.

The data notes it is for "Series 80" 1911s. Can't recite from memory how Series 80 differs from earlier iterations of the 1911. You might want to start by understanding the distinction of Series 80 and whether your 1911 is Series 80 or not. If not, I think I read about a mod somewhere.

I remember seeing the 'mod" but I "assumed" that if it all fit and functioned...that it must be a compatible 1911.....

It wont eject when fired? Or are you hand cycling the live rounds too?

Both, checked multiple times with the dummy round which works flawlessly and then went to the range and it wouldn't eject the live stuff.

[ojisan]

The Series 80 gun has a firing pin block plunger that is pushed up and out of the way of the firing pin by the trigger bow via two levers.
Series 70 does not have this.
If you put a Series 80 slide assy on a 70 lower, the firing pin plunger will not be pushed up by the levers and the gun won't fire.
If you put a 70 slide on a 80 lower then you may not be able to pull the trigger as the top lever has no place to move to in the slide.

Most .22 conversions do not use a firing pin block plunger, so why series 80 is specified for the Sig kit, I don't know....does the Sig Kit use a firing pin block plunger?

Anyway, this 70 / 80 stuff relates to firing the gun.
Apparently the gun fires so we move on from here.

OP, check the ride height of the mags.
The mags may be sitting a little too high, knocking the extracted round out of the extractor and crooked on the breech face , so it does not hit the ejector properly.
I'm not sure how the Sig ejector is set up, look at that too.
(Post a pic?)

[RawHP]

So I picked up one of the sig branded 1911 conversion kits that were on sale for a while a couple months ago...and put it on a full size .45 RIA pistol that I have. It function tests well and using the supplied orange plastic bullet that came with the kit it ejects rounds perfectly. But with live ammo it doesn't eject the rounds at all. I've tried 3 different brands ammo including CCI mini mags.

Tips on what to check first?

Is the slide cycling all the way to the rear when fired? If you manually cycle a live round, does it eject?

If it manually ejects a live round, then I'd look at smoothing up the rail to slide fit (polishing/deburring the grooves in the slide).

Has you 1911 been accurized (rails peened, etc.)?

[TurboChrisB]

Not sure if it cycles all the way when fired, but if I manually cycle a live round it won't eject it. Only if I manually cycle the dummy round will it successfully eject it. The base for it is a standard Rock Island Tactical FS 1911 that's about 5 years old.

[smle-man]

Try shooting it and critique it at that point.

[Chaos47]

Try shooting it and critique it at that point.

That is what I was trying to get to, but OP (IMO) wasn't clearly stating if it was actually firing it or hand cycling.

Go shoot it OP.

[aghauler]

I put the same kit on a Sig 1911 and it was flawless with good ammo (including mini mags) and occasionally FTE with some bulk Remington.

The data notes it is for "Series 80" 1911s. Can't recite from memory how Series 80 differs from earlier iterations of the 1911. You might want to start by understanding the distinction of Series 80 and whether your 1911 is Series 80 or not. If not, I think I read about a mod somewhere.

EXACT same issue I had hand cycled the dummy round fine, would NOT fire live rounds.

Yes there is a modification you have to do cuz the RIA are a Series 70 config.
I found that out some months ago when I bought the same kit and found it didn't work correctly. Ran a thread here on Calguns after returning for a refund
someone mentioned the mod, I think there is a YouTube video???
Anyway I got my money back and bought an Advantage arms kit instead and it has been flawless, haven't looked back.

[TurboChrisB]

Ok, some of you guys nailed it. The fact that the dummy round ejected flawlessly had me stymied.

All RIA 1911's are Series 70. The Sig/GSG conversion slide is for Series 80/90 pistols. When I tried the slide on my Sig 1911 it works perfectly.

So the answer for me is to either mod the slide or just use it on other 1911's.

[aghauler]

Ok, some of you guys nailed it. The fact that the dummy round ejected flawlessly had me stymied.

All RIA 1911's are Series 70. The Sig/GSG conversion slide is for Series 80/90 pistols. When I tried the slide on my Sig 1911 it works perfectly.

So the answer for me is to either mod the slide or just use it on other 1911's.

Glad problem solved, that's what Calguns is fer!!!