My AR-15 barrel was cut down & threaded at Territorial Gunsmiths as well!  Did a Great job of it too!

I don't remember...  Give Randy a call & see

If you REALLY want him to be a happy camper, bring him a bottle of Scotch!  I didn't know what kind of Coffee beans he liked, or what kind of Smokes he preferred, so I brought him a bottle of Jameson...  Be warned:  You'll be there for a while, so go in only when you've got plenty of time to spare.

He liked it, but I then found out he prefers Glenlivet or Glenfiddich.  

Next time he does some work on my 1911 I'll bring him a better bottle of scotch as a 'gift'...  I understand the whole 'Lesson' on 1911s!!!

Also, I brought in my Glock last summer (to get the trigger pull imrpoved) and he talked my head off discussing its operation, how to tune the trigger better than just dropping in a new connector (but by tuning the connector as well to have a shorter trigger reset), how to fully detail strip it, WHY the glock MUST be fired with the ugly Gray/Gold grease on the rails for at least 300rds prior to cleaning (to get that 'glock reliability), how to change out the sights properly (and he let me watch him do it on another customer's glock)...  I was in there 3-4 hours and it was like sitting in on an armoring course or something.

It was VERY educational!  When I went in with my Old Colt CCO 1911 he not only verbally tore me a new one and smacked me upside the head for being an idiot ...  He also informed me of all parts replacement intervals for my 1911 springs, etc.  Was well worth my time even IF my old 1911 was practically FUBAR.  

I was going to have him completely rebuild my Colt CCO 1911, but the gun's overall value had already been deteriorated to about $230, so why sink another $300 in a gun to rebuild it?

I've learned a hardcore lesson:  I can NEVER own an Aluminum Alloy handgun as there's NO WAY an alloy gun can hold up to my abusive handling.  

No more lightweights for me!  

Otherwise he's done mostly work with dehorning/softening my CCO, and tuning/trigger work.

I'll soon bring him my new 1911 to have him tune my extractor, ejector, and mill my slide for some new sights.  Maybe some more work if I need it.

I'm sure if you wanted he could do a lovely custom build, but for the most part money would be the main limit to the custom features.