Made in America By outdoorsmen, for outdoorsmen

Left Side Armory

Optics

Ballistic Data Card Holder

Picatinny Rail Mounted Dope Card Holder for Long Range Shooting

$49.99

In stock · ships from Michigan

  • Free shipping over $19.99
  • 30-day returns
  • Lifetime warranty

The Detail Work

Keep your scope adjustment data right where you need it. This rail-mounted card holder positions your ballistic data card directly beside your optic, so you can track elevation and windage clicks for different yardages without fumbling for notes or checking your phone. Faster than phone apps and more reliable than memorizing your holds, it gives you quick access to your dope when it matters most. At just 1.41 oz (40 g), it mounts securely to any Picatinny rail and folds flat when not in use. Perfect for PRS matches, load development sessions, and long-range hunting.

Holds Standard CR80 Cards

Holds Standard CR80 Cards

Designed to fit CR80 note cards (standard credit card size), giving you plenty of space to track multiple yardages, wind values, and click adjustments. The included PVC card works with dry-erase markers, so you can update your data right at the firing line without carrying extra cards. Swap in printed cards for match day or use the dry-erase for practice sessions.

Folds Away for Clear Sight Picture

Folds Away for Clear Sight Picture

When you're not referencing your data, the holder folds flat against the rail to stay out of your peripheral vision. The hinge design lets you flip it up when you need it and tuck it down when you don't. No tools required to open or close it, and it stays secure in both positions without rattling loose.

Secure Card Retention System

Secure Card Retention System

Your data card locks in place and won't fall out during recoil or transport. The retention system holds the card firmly while still allowing quick removal when you need to swap cards. No fumbling with clips or covers that slow you down between shots. Built from impact-resistant Nylon 12 to handle rough use in the field or at the range.

Spec Sheet

Material Nylon-12Weight 40 g
Technical Data
Weight
40 g
Length
3.66 inch
Width
3.62 inch
Height
0.81 inch
Material
Nylon-12
Mount Type
Picatinny

Our promise

No middlemen. No fine print.

Direct from the people who make the gear — and use it.

Made in Michigan

As a local Michigan shop, we understand the needs of our community because we use these products ourselves. Every part is field-tested on our own rifles, bows, and saddles before it earns a spot in the catalog — we run exactly what we sell.

Premium materials Field-tested Free shipping over $19.99

Values

We back Great Lakes Gun Rights.

Standing with 2A advocacy across the Great Lakes — the fight to keep our community shooting.

About the partnership