




We offer free standard shipping to every province and territory in Canada.
We offer free standard shipping to every province and territory in Canada. No minimum purchase is required, and all orders include tracking for your convenience.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Deliveries to Canada’s outer and remote regions may experience seasonal delays caused by severe weather or limited carrier availability. We appreciate your patience and recommend allowing additional time for your order to arrive safely.
The Hammy3DPrints Killflash Anti-Reflection Device is a precision-fit accessory designed for Holosun 403C and 503BU red dot sights. Finished in a forest green matte, it slips over the forward end of the optic to help minimize reflections while staying compact and lightweight. Built to be discreet, the ARD maintains the sight picture you rely on in varied lighting conditions without altering the core performance of your optic.
Because this is a friction-fit accessory, installation relies on a snug hold rather than permanent modification. Expect a firm press to seat the unit securely; once in place, it sits flush with the end of the optic for a clean, streamlined look you can trust in the field or on the range.
Designed specifically for Holosun 403C and 503BU models, the Killflash is a practical enhancement for shooters who want to reduce glare while maintaining accessibility and quick target acquisition. The forest green finish offers camouflage-friendly aesthetics for outdoor settings without implying guarantees of performance in any specific scenario.
Real-world use suggestions:
Handle with clean hands and align carefully with the optic’s end cap. Apply even pressure to seat the Killflash; if removing, use a gentle, uniform lift to break the friction hold. Regular inspection ensures the fit remains snug and aligned with your sight line.
Q: Which optic models is the Killflash compatible with?
A: Designed for Holosun 403C and 503BU red dot sights; fits the 403/503 family.
Q: Is installation permanent or tool-free?
A: Non-permanent; friction-fit over the optic end, some force may be needed to seat it.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Thanks for subscribing!
This email has been registered!
| Product | SKU | Description | Collection | Availability | Product type | Other details |
|---|