Dlask 1911 barrel problem

[slug]

I have a Dlask 1911 upper that was installed on an STI lower.
However, it has a full length guide rod and no bushing.
My problem is that I can't figure out how to remove the barrel on this little toad.
Any help would be greatly appreciated.
Thanks.

 

[Hitzy]

Lock the slide back, look for a little hole in the guide rod, you make a little L shaped tool out of a paper clip, insert the short end in the hole, slowly release slide lock and make sure it's holding. You can then remove the slide/barrel/guide rod assembly.

 

[slug]

Done!
All is golden.
Many thanks.