If you're looking for a great hunting rig, you may want to contact Robert Bailey at Lone Wolf Distributors. He and I collaborated on a Glock 20 long slide, and I've been very, very happy with it.
Their armorer, "Dan," is a great guy, and he engraved my LWD slide with the Glock markings and added the titanium striker and some other slide parts that make this gun shoot like a dream. I also added a "Ghost Rocket" trigger connector, which comes with a heavier trigger spring and lighter safety plunger spring.
The LWD build also included a heavier (22#) recoil assembly.
I have put several thousand rounds of 180 gr. /1300 fps handloads (Blue Dot 11grs), and have had no problems at all.
I also love the 8 MOA Burris Fastfire III red dot sight. This is the sweetest shooting Glock I've ever owned, and I can't imagine a better hunting pistol.
If you're interested in contacting Lone Wolf Distributors, Bob Bailey (sales mgr) can reference the work done on my order ("Ladd Gardner/Colorado) and you'll know you're going to get a rig that shoots great.
Dan at Lone Wolf did the engraving on the slide (Glock markings), and he did a great job. I had already ordered the KKM 6" barrel, and I didn't see the need of getting it threaded for a compensator or suppressor. The extra 5/8" of an inch would've been too much barrel for my tastes, and made an already VERY long hunter completely unwieldy.