Who makes this locker?

[Justin87]

Military

MilSpec GUN & AMMO CABINETSTake control of your safety & security with gun & ammo storage built to military specification. MilSpec Gun &Ammo Cabinets GIVE YOURSELF EVERY ADVANTAGE THE BENEFITS OF GUN STORAGE BUILT TO MILITARY SPECIFICATIONS'We have tried several gun lockers at the Sig Sauer...

www.secureitgunstorage.com

This is pretty similar too

 

[Overwatch1]

Looks like Gallowtech uses a different attachment method. I did find that the locker itself can be sourced through ULINE for a “decent” price, now to find the interior accessories…

 

[steviesterno]

another option is Wall Control. It's metal peg board. lots of companies make mounts. I did a whole wall in my gun room with it.