Looking for a 1911 one piece guide rod recommendation

To quickly swap uppers on a 1911, I would like to install a 1-piece guide rod, as done in this video:  
https://www.youtube.com/watch?v=tIpPMFm5ubM

Can anyone suggest one for me?

I think you mean a 2-piece full length guide rod.

I bought one about two years ago, works fine, but let's see what other people here recommend.  Lots of discussions on this, here's one:

https://www.1911forum.com/threads/2-piece-full-length-guide-rod-why.183591/

Funny, the video you linked to was what I started with years ago - wanted to be able to switch a 1911 back and forth quickly and easily.
That was the intent, but I ended up with two 1911's, so one is permanently set for the Nelson kit.

I can't explain the reason for this angled "cut", but my original was modified by Dave Salyer.  I sent a photo of what I was told to get, and the people I bought the new parts from machined their part to match.

Wilson Combat has a one piece full length guide rod. Works great. I have them in all of mine. They come with a special spring retainer.

I like the "one piece full length" guide rod with matching plug which have the hole in the shaft (rod) whereby with a L shaped wire (I make mine from paper clips) you simply compress the spring, insert pin to capture the spring tension, then remove guide rod, and plug as a captured unit. Then ease the plug out the rear. All without turning the bushing on the barrel in the lock up position. 

You can do a pretty thorough clean at this point. You can also, then, ease the barrel forward to get out of lock up, then turn and remove the bushing, then barrel.

Like Len said, Wilson
But, works best if recoil spring tunnel opened up for clearance

I've changed to these for every 1911 I've owned. They have always worked flawlessly and make stripping for cleaning much easier. I love them.

https://dawsonprecision.com/guiderod-1911-5-bushing-barrel-tool-less-by-dawson-precision/

The Dawson is nice but not for all 1911s. 

I can't explain the reason for this angled "cut", but my original was modified by Dave Salyer.  I sent a photo of what I was told to get, and the people I bought the new parts from machined their part to match.

This angled cut is to prevent contact/interference from the barrel bottom lugs. Oversized lugs on match barrels will hit this and not go completely into battery.
Jon

Thanks, Jon.  

If I ever buy a new 1911, made specifically for me, I would leave all these decisions up to the gunsmith building the gun.

EGW, this is the one I use in all my builds.
https://www.egwguns.com/2-pc-ss-5-guide-rod

I am also a fan of the Dawson Precision product.