The Holosun 507K X2 ACSS Vulcan Red & Green Dot Sights are great specialty optics co-created with Primary Arms for sub compact and micro compact pistols. These are a modified RMSc/K series footprint. They feature a 230 dotted outer ring and a 3 MOA center dot. The purpose of the 230 MOA outer ring is to help you "find the dot" when drawing the pistol. The 230 MOA outer ring is only visible when you do not see the dot. When the dot is centered the ring is not visible. This acts like an aim assist to help you adjust your grip quickly to get on target faster. Learn more about the ACSS reticle here.

They come with shake awake, are IP67 waterproof, and have a 40,000 hour battery life. They have strong 7075 T6 aluminum housings and clear glass and come with a limited lifetime warranty.

Read our Pistol Optic Fitment Guides to learn which optics fit your gun or reach out to us on chat.