The primary diameter that slides over the tip is definitely 1/2 inch. I believe there are two different diameters if memory serves, the smaller would be more like 13/32" and serves as the stop so that it won't slide further on. I don't have it in front of me, I'm going off of barrel dimensions as I was annoyed by mine and threw it away.

.40 Cal Peep Sight Blowgun Attachment

Q: Does this fit a cold steel big bore blowgun

This will not fit .625 blowguns....this fits only .40 cal, however they do make a .625 peep site

Product ID: 4003602

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🎯Precision Fit

🏹Enhanced Accuracy

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🎯 Hit the Bullseye Every Time!

DURABLE DESIGN - Crafted from high-quality materials to withstand the test of time.
JOIN THE ELITE - Elevate your blowgun game and impress your fellow enthusiasts!
UNLEASH YOUR AIM - Transform your .40 Cal Blowgun into a precision shooting machine!
BOOST YOUR SKILLS - Experience improved accuracy and control with every shot.
SEAMLESS INTEGRATION - Effortlessly attaches to your existing blowgun for instant upgrades.

The Peep Sight Blowgun Attachment is designed specifically for .40 Cal blowguns, offering a precision fit that enhances shooting accuracy. With easy installation and durable materials, this attachment is perfect for both novice and experienced blowgun users looking to elevate their performance.

Have a Question? See What Others Asked

Does this fit a cold steel big bore blowgun

what diameter is it?

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