Listed here is a Glock 23 Gen4 that’s been very tastefully customized with some truly premium upgrades. This pistol was professionally sent to Glock for custom porting on the front of the slide, all milled and then expertly refinished by Glock themselves with their signature ferritic nitrocarburization finish, ensuring both durability and that factory-fresh look.
The trigger guard has also been enhanced to include the much-preferred indent now featured on the Gen6 models, making for a more comfortable shooting experience. This package also includes a 9mm conversion barrel, allowing you to effortlessly switch between 9MM and .40 S&W calibers, making this firearm exceptionally versatile.
Rounding out this setup is a Holosun HS507C H2 red dot optic, already mounted and ready to go. Altogether, you’re getting a fantastic turnkey pistol setup that’s ready for range days or daily carry right out of the box.
As always, the photos show the exact firearm you’ll receive. Everything functions exactly as it should. We have inspected and function checked this pistol, though we have not fired it. If you have any questions about this custom Glock 23, don’t hesitate to reach out!
Do you own this item, and are looking to get cash for it?
How to Purchase a Gun Online with Bay State Surplus
Easy & Convenient.
When buying a firearm from Bay State Surplus, you can pay for shipping or select 'store pickup' at checkout to skip the fee. Shipped firearms must go to a licensed FFL dealer with their consent and license copy. We offer Priority or Ground shipping. IT IS THE BUYERS RESPONSIBILITY TO CONFIRM THE FIREARM/ MAGAZINE IS IN STOCK & COMPLIANT IN THEIR STATE. Feel free to ask us any questions at baystatesurplus@gmail.com. Thank you for choosing Bay State Surplus!
Download the approved handgun roster to view which handguns are transferable in Massachusetts
The enforcement of the Long Gun Roster has been postponed until the roster is officially released, and the release date remains uncertain. As of writing this (11/7/2026), all long guns are still transferable in Massachusetts for now, provided they do not meet the NEW definition of an "Assault Style Firearm."

































