Geissele 5.45mm Suppressor Alignment Gage

The Geissele 5.45mm Suppressor Alignment Gage (brand part no. 10-1345-F) is a precision fit-check gage used to confirm a suppressor mount or adapter is properly concentric with a 5.45mm bore before the suppressor is ever fired. Geissele Automatics builds this gage as a safety verification step rather than the suppressor mount itself, catching a misaligned thread or baffle stack before it becomes a baffle strike downrange. This is not an NFA-regulated item; it’s a gunsmithing verification tool that any builder can own and use without special paperwork, even though it’s sometimes filed alongside suppressor parts. Stock it with the rest of our gunsmithing tools and gunsmith supplies for suppressor-host rifle builds.

Key Specifications

• 5.45mm Bore Sizing Ground specifically to check alignment for this bore diameter.
• Alignment Verification Function Confirms a suppressor mount or adapter is concentric with the bore before live fire.
• Pre-Fire Safety Check Used as a build-verification step rather than a suppressor part itself.

Frequently Asked Questions

Why does suppressor alignment matter this much? A baffle strike from a misaligned mount can destroy the can and, in a worst case, injure the shooter, making a pre-fire alignment check a serious safety step.

Do I need an NFA transfer to buy this gage? No, this is a gunsmithing verification tool, not the suppressor itself, and requires no special paperwork to purchase or own.

Buy the Geissele 5.45mm Suppressor Alignment Gage

Checking alignment before the first shot is far cheaper than finding out after a baffle strike. Order this gage from our Lubbock, Texas gun shop for fast, insured shipping to your bench.