Confirmed Fitment
Sig Pro Magazine Loader
The Sig Pro is confirmed to fit the Super Thumb ST2 magazine loader from ADCO. The original Super Thumb loads Sig Pro magazines faster and with far less thumb strain — a purpose-built tool, not a one-size-fits-all compromise.
Your Fit
Super Thumb ST2
Wide Body Double-Stack
Width
1.5" (38.6 mm)
Height
1.01" (25.4 mm)
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 Sig Pro. Every Super Thumb is backed by a lifetime warranty.