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Battery Cap Tool for Trijicon SRO

Battery Cap Tool for Trijicon SRO

Regular price $12.50 USD
Regular price Sale price $12.50 USD
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Shipping calculated at checkout.

- Specialized Fitment: The location of the screw head, and especially the flat shape of it, on the SRO leaves much to be desired. This tool greatly reduces the chances of scratching the optic body, and most importantly the glass. Since this tool is 3D printed it is also much more forgiving than metal-on-metal or metal-on-glass contact. The SRO tool is tapered near the middle to allow it to be nearly perpendicular to the SRO, greatly easing the cap removal and installation.

- Scratch Free: 3D-printed tool reduces the likelihood of scratching your optic compared to a coin, screwdriver, or other metal-on-metal contact. I have yet to scratch my battery cap, though your results could in theory vary.

- Standard and BROS Versions: The Standard version is recommended unless you have a Jagerwerks BROS installed. The BROS version has a longer neck to accommodate the BROS.

- Usage Notes: Ensure you push the tool into the battery cap while you twist it. When re-tightening, go until it is snug and then stop. This is a plastic tool, and is not meant to be tightened like you would a tire lug nut.

- Original, Innovative Design: 1000+ products designed and 3D printed in the heart of America in St Louis, Missouri by Hammy3DPrints.


See a review of a previous PLA+ version (it is now printed in Carbon Fiber Nylon) from a buyer here:

NOTE: Due to how 3D printing works, one side will look rougher than the others and may flare up slightly due to the nature of this filament warping. This is to be expected and does not affect the function.

Disclaimer: This product is not manufactured, authorized, endorsed, or warranted by Trijicon. It is solely designed and produced by Hammy3DPrints.

MATERIAL: 3D printed using PLA+ filament.

WARRANTY: If this item breaks I will make any design adjustments, if needed, and send a replacement for free.

Made in USA.

Please note that the products may have slight imperfections as 3D Printing is rarely perfect. The exact product you receive may also slightly vary from the product photos as I iterate and improve upon designs based on user feedback.


FDM 3D-Printed with PLA+ filament (unless otherwise specified).

Shipping & Returns

Most items ship within 2-5 days. Larger orders may take longer to ship.

$4 flat shipping. Orders over $35 ship free.

Returns accept within 30 days.


If the item breaks for any reason, reach out to me at and I well get a replacement or refund sent to you ASAP.

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Customer Reviews

Based on 52 reviews

Item arrived fast after order

Stephen K.

Great product. I’d purchase again.

Joseph B.

Fixes the annoying issue of having to scratch up your SRO battery cap, should be a standard tool shipped from the factory! Great Job


Great product and fast shipping

Mike P.
Imported From Etsy

The product works perfectly as advertised

Imported From Etsy

Great piece of equipment to keep your battery cap from getting scuffed up. Extremely fast shipping. Thanks!

Johnny D.
Imported From Etsy

The cross pattern unfortunately chipped and broke off. It wasn't as deep as I liked the cross pattern to be. It made it very hard to take off battery cap and kept slipping. It is really a hit or miss with 3D printing stuff. But...worked better than any other thing you will find laying around at home. The SRO has such a bad design that it makes us source a tool just to take off the battery cap. Such a pain.

Imported From Etsy

Fast shipping a great little tool to open battery compartment on very expensive handgun optic. Now no stripping the threads with a screwdriver.

Imported From Etsy

This little tool is outstanding, only thing that might make it better would be a larger T handle, but that's because I have huge hands but it works perfectly!!!! Outstanding job!!!!