Eastern Tactical Supply .357 Bore Sight – Zero Sights Without Firing (5mW, 625–650nm)

Effortless sighting without live fire

The Eastern Tactical Supply .357 Bore Sight is a compact, precision tool designed to help you align your optic or iron sights before you shoot. With a max output of less than 5mW and a visible red beam in the 625–650nm range, this bore sight provides a safe, repeatable reference point for sighting in your equipment. Classified as Class IIIA, it offers a clear, controllable reference without the need to discharge a round.

Designed to sit cleanly in the bore, the tool features a sturdy aluminum construction that stays true after insertion and removal. You can adjust and zero your optic or iron sights without firing a shot, which can save time at the range and minimize wear on your setup during early testing and alignment phases.

What you can expect when using the bore sight

• Range flexibility: sighting references from 15 to 100 yards support both indoor practice and field adjustments (and alignments before live fire).
• Reliable bore alignment: a bore-friendly fit helps reduce guesswork during initial zeroing.
• Rugged construction: durable aluminum body is built for repeated insertions and steady performance.

Specifications and contents

• Max Output Power: ＜5mW
• Wavelength: 625–650nm
• Laser Class: III A
• Laser range: 5–100 m
• Package includes: 1 x Bore Sight, 6 x AG3 Batteries

Practical use and care

Use this tool as part of a thoughtful zeroing workflow. It’s ideal for quick checks on range days, routine maintenance verification after equipment changes, or whenever you want a reliable reference point before testing with live ammunition. While it provides a helpful, repeatable reference, always prioritize safe handling and follow range protocols for handling firearms.