Benjamin Maximus Upgrades from TKO22! (www.tko22.com) – Slip on moderator and modified 2 stage fully adjustable trigger! Please scroll down for more information about the new Benjamin Maximus Upgrades. It’s a great time to be an airgunner! The Benjamin Maximus hit the scene last year with a bang.  No, really a “bang”, because while it was a great value, it was also really loud. It also had a very spongy, non-adjustable trigger.  But at under