Confirmed Fitment
EAA Witness Magazine Loader
The EAA Witness is confirmed to fit the Super Thumb ST2, the loader ADCO builds for wide-body double-stack magazines. It loads EAA Witness magazines faster and with far less thumb strain — a purpose-built tool, not a one-size-fits-all compromise.
Why loading these magazines is a fight
Double-stack magazines get progressively harder to load as the spring compresses — the top few rounds are where thumbs give out. The Super Thumb pushes each round straight down against that spring tension for you, so topping off to full capacity takes seconds instead of sore thumbs.
Your Fit
Super Thumb ST2
Wide Body Double-Stack
Width
1.5" (38.6 mm)
Height
1.01" (25.4 mm)
EAA Witness loader — common questions
Which Super Thumb fits the EAA Witness?
The EAA Witness is a confirmed fit for the Super Thumb ST2. It appears on ADCO’s verified Super Thumb fit chart as an exact match.
What kind of magazine does the Witness use?
The Super Thumb ST2 is built for wide-body double-stack magazines, which is the class the EAA Witness uses.
Is the EAA Witness fit guaranteed?
Every Super Thumb is backed by a lifetime warranty. If you’re not certain, confirm with the Model Finder or call ADCO at 781-935-1799 before you order.
Not 100% sure? Confirm before you order.
Super Thumb loaders are model-specific. Use the Model Finder to double-check your exact firearm and magazine, or call ADCO Arms and we'll confirm the right loader for your EAA Witness. Every Super Thumb is backed by a lifetime warranty.