X Ring Rail Mounted Data System (RDS) | PRS Data Card Holder

X Ring Rail Mounted Data System (RDS) | PRS Data Card Holder

5.00 out of 5 based on 2 customer ratings
2 customer reviews


Out of stock

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  • Print your own Scope Dope Card PDF
  • Conveniently place your ballistics data in a position that can be viewed without moving positions.
  • Simple to position
  • Doesn’t move under recoil
  • Friction Pivot joints hold it in any position
  • Lightweight and durable, reinforced with crystalline polymer
  • Mounts directly to a Picatinny Rail, and can fit under low optics
  • The ideal PRS data card holder
  • Record your data on the provided DOPE cards, or use a wet-erase marker on the protective sleeve
  • Made by XRing
SKU: ACC-1440001 Categories: ,


The X Ring Rail-mounted Data System, or RDS, was designed to conveniently locate your ballistic data in a position that can viewed without moving out of your shooting position. It is simple to position and doesn’t move under recoil. It also folds out of the way for ease of storage when not in use. The lightweight reinforced crystalline polymer bodies, along with stainless steel and brass fasteners, make it durable and able to withstand chemicals and weather conditions.

Simply position the RDS on your Picatinny rail and tighten the socket head cap screws. The friction pivot joints are pre-set and should not require adjustment.

Ballistic data can be recorded on the provided blank DOPE cards, or written directly on the vinyl protective sleeve with either a wet erase pen, map pen, or grease pencil.

How Download and print the Bullet Central Scope Dope Card PDF for the best PRS data card holder by Xring.

Printing Instructions:

Click the image below.

Print from your PDF viewer or your browser

Make sure that “Fit to Page” is not selected.  If it is selected the dope cards will not fit into the X Ring Rail Mounted Data System.


Additional information


X Ring Armory

2 reviews for X Ring Rail Mounted Data System (RDS) | PRS Data Card Holder

  1. Rated 5 out of 5


    I really like this card holder. It can be folded in any direction. It stayes steady in the wind and it is pretty robust.

  2. Rated 5 out of 5


    This card holder is the best on the market. For the price you can’t beat it. I had a sidewinder that would flop and blow in the wind all the time. I hated it. I saw this at the South Dakota Steel Classic PRS Match. Had to have one. I like that you can run it up or down then fold it in to put the gun in your case. Mounts to the pic rail firmly. Very nice.

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