---
title: "Kill Flash for Holosun HS503CU"
subtitle: "Custom Anti-Reflection Device for Holosun HS503CU"
sku: "850052274733"
price: 19.99
priceCurrency: USD
availability: InStock
url: https://leftsidearmory.com/shop/kill-flash-for-holosun-hs503cu/
category: "Optics"
productLine: "KillFlash"
updated: 2026-09-02T16:35:55.920Z
---

# Kill Flash for Holosun HS503CU

**Custom Anti-Reflection Device for Holosun HS503CU**

Snap this Kill Flash onto your Holosun HS503CU and eliminate distracting glare and reflections. Whether you’re on the range or in the field, you’ll stay concealed and focused, with no sunlight giving away your position. Designed for a secure, custom fit and all-day reliability.

## At a glance

| | |
|---|---|
| Price | $19.99 |
| Availability | In stock |
| SKU | 850052274733 |
| Category | Optics (https://leftsidearmory.com/shop/optics/) |
| Product line | KillFlash (https://leftsidearmory.com/shop/killflash/) |
| Product page | https://leftsidearmory.com/shop/kill-flash-for-holosun-hs503cu/ |

## Specifications

| Spec | Value |
|---|---|
| Weight | 1.7 g |
| Width | 1.25 inches |
| Height | 0.3 inches |
| Compatibility | Holosun HS503CU |

## Buying

- Order online: https://leftsidearmory.com/shop/kill-flash-for-holosun-hs503cu/
- Shipping — Standard: $9.95, free on orders over $20.00, est. 5 days transit
- Shipping — Priority: $15.00, est. 2 days transit
- Returns: within 30 days of purchase, by mail, in original packaging; customer pays return shipping.
- Questions: hello@leftsidearmory.com

---

Left Side Armory — American-made outdoor accessories and AR-15 components built in Michigan. Lifetime warranty.
Full catalog index: https://leftsidearmory.com/llms.txt