Nelson Conversion Unit

hi,i have a High standard supermatic trophy with red dot,but the nelson conversion looks very sexy. i want to know the conversion fit all 1911 frames or better in specific frames,thanks.

It will fit mostly all 1911 frames.  The only issue i've seen was when i had rails of a gun peened. A problem that rarely occurs is the nelson magazines not working with hi catch mag catches.

I haven't had a problem yet.  Used JEM, STI, Springfield Armory & Colt.  No issues at all.  As Chris said you need a standard mag catch if you're using the mags that come with the conversion.

kc.crawford.7 wrote:I haven't had a problem yet.  Used JEM, STI, Springfield Armory & Colt.  No issues at all.  As Chris said you need a standard mag catch if you're using the mags that come with the conversion.

thanks KC!

Christopher Miceli wrote:It will fit mostly all 1911 frames.  The only issue i seen was when i had rails of a gun peened. A problem that rarely occurs is the nelson magazines not working with hi catch mag catches.

Thanks Cristopher!

Using one on a Taurus frame, no issues.

I have 2 on Caspian frames. They work great!

Ric

Works fine with my old Springfield Milspec. But, could not get it to work with a RIA that I bought to make it a dedicated lower. I talked with Larry, he sent springs, and tried to help, but to no avail. The RIA must be a little out of spec.

I just made the Springfield the dedicated lower, sold the RIA, and bought a wadgun off this forum. All is well.

I prefer the Sig Saur mags that was suggested here also. Easier to load, don't need insert that pin to pull the follower down. I lost that pin the first match I shot with it, it rolled off the table, and the shooters next to me helped look, but it was gone forever. I was using a drill bit until I got the Sigs.

I have or had Marvel. Advantage, and Nelson conversions all fit with no problems on 3 Roddy made Baer frames, 2 Range Officers, Gold Cup made 1963, and Colt Govt (1980 made),

ric1911a1 wrote:I have 2 on Caspian frames. They work great!

Ric

+1

My dedicated lower is a frame from a Springfield Range Officer. Needed the right hammer spring and a standard type (non ILS) mainspring housing. Works great. Very accurate little gun.

built mine on a PSA frame I had laying around...Very nice frames.. same as Remsport.. made in Korea.

Isn't it about time for them to go on sale again?? hint hint. I need to buy someone a xmas present.

LenV wrote:Isn't it about time for them to go on sale again?? hint hint. I need to buy someone a xmas present.

i will buy one,the next christmas,first is my 1911 wadgun project. like this http://www.nelsoncustomguns.com/store/index.php?l=product_detail&p=27

FWIW  My Nelson will not go onto my 9mm Springfield RO.  Th RO ejector is too high for the Nelson to slide on.  The Nelson fits and funtions on my early 1990's  Springfield 1911a1 just fine. bob

The 9mm ejector is only a problem if you're swapping tops during the match.
The 22 conversion doesn't need the cf ejector to function.

STEVE SAMELAK wrote:The 9mm ejector is only a problem if you're swapping tops during the match.
The 22 conversion doesn't need the cf ejector to function.

You are correct, you don't need the center fire ejector with the conversion, but we don't recommend shooting without one for safety reasons.  Without the cf ejector there is a direct path from the shell to the face of the shooter in the event of a case rupture.

There is another option of a minor alteration that allows you to use the 9mm and the conversion.  (the frame that Rob Leatham uses in the videos on our website is a Springfield 9mm that was modified).

If you (or anyone) is interested in the modification, please feel free to contact me.

Larry
480-699-8040

Any chance you could post about the modification here?  I'm sure other people doing general internet searches would be interested.

I have one coming as previously mentioned but I do have a fitting/using question. I was a little bored or maybe just being prepared. After seeing that the RO 9mm needed to be modified I decided to use my .45 RO and did a trigger job on it yesterday. I was able to get the trigger down to somewhere between 2.25 and 2.5 lbs (lifts 2.25 won't lift 2.5) but at that weight it wanted to hammer follow when I released the slide. My question is, is that a problem with the Nelson that I have to worry about or is the slide so light that hammer will not follow? If the hammer follows will it fire? I guess that's two questions

Len

LenV wrote:I have one coming as previously mentioned but I do have a fitting/using question. I was a little bored or maybe just being prepared. After seeing that the RO 9mm needed to be modified I decided to use my .45 RO and did a trigger job on it yesterday. I was able to get the trigger down to somewhere between 2.25 and 2.5 lbs (lifts 2.25 won't lift 2.5) but at that weight it wanted to hammer follow when I released the slide. My question is, is that a problem with the Nelson that I have to worry about or is the slide so light that hammer will not follow? If the hammer follows will it fire? I guess that's two questions

Len

When the hammer follows does it go all the way home to the firing pin or does it stop at a half cock or safety notch position? If the hammer goes all the to the firing pin then yes, it's gonna go bang. 

Also: the hammer may not fall with the 22 slide because it's lighter and uses a lighter recoil spring but can't be sure until it's tested. 

When you did the trigger job did you use a new sear or recut the one in the gun? 

And finally - hold the trigger back when dropping the slide. Does the hammer still follow? If so PM me.

Slide velocity on conversion slides is really fast. You have to make sure you are using a long enough sear to prevent hammer follow down to half cock. I run across short sears in many older pistols; from previous trigger jobs. If pull weight 3# or more not a big deal; just good trigger job. Under 3# tolerances are more critical.
Jon

Len I've have 2 Nelson's, 1 with a dot on a dedicated lower and the other on my RO frame that has a Harrison ignition system in it and neither of them has ever had a hammer follow . The dot .22 has a round count over 2000 and the irons sights conversion unit is over 1200 the RO frame is new . If that helps any and right now trigger weight on the dot .22 is 2.5, the the irons is set for 2.5 also.

Len,

Dig down in your box of goodies and find a couple sears to experiment with. As Jon said a short sear will drop every time when you try to go that light. You should be able to get under 3 lbs. with good parts. You have plenty of time while you're waiting for your new Nelson!

Jim

if you have to buy a new sear try the STI sears...very well made, fairly inexpensive, and Long.  Brownells carries them

 I can get a .405 length true radius sear out of them if need be.  .404 is the norm.

Thanks everyone. I do have a lot of different sears here. I actually didn't touch the sear this time. I had a great 3.5 lb trigger on it so just worked with the main spring. It doesn't follow when I hold the trigger or rack slide by hand. It does drop past the half cock when released so it made me wonder if it was going to go bang. I will work with it some more and see if I can get it to work that low. I don't have a lot else to do on this cold nasty day.

Len