Frequently Asked Questions

1. What is a "RailScale"? - A "RailScale" is textured grip panel for a firearm forend like MLOK or Keymod. Our patented textures are the thinnest on the market and provide excellent grip and heat protection. Our RailSales are offered in our original machined G10 line as well as our cost savings High Temp Polymer line.

2. What is G10? G-10 is the common name, but we use FR4, which is G10 but with flame retardant. FR4 is a high-pressure fiberglass laminate, a type of composite material. It is created by stacking multiple layers of glass cloth, soaking in epoxy resin, and compressing the resulting material under heat until the epoxy cures. It is manufactured in flat sheets, most often a few millimeters thick. G-10 is very similar to Micarta and carbon fiber laminates, because they are all resin-based laminates, except that the base material used is glass cloth. G-10 is the toughest of the glass fiber resin laminates and therefore the most commonly used.

3. Are G10 RailScales & XOS Scales sold as a set? - No, all G10 machined Scales including G10 RailScales, G10 XOS, G10 XOS-H, G10 Solo's, as well as our HTP XOS, HTP XOS-H, and HTP XOS-W Scales are all sold individually. We design our RailScales to be modular so that the layout can be uniquely customized to each individual setup. By offering them individually you can purchase exactly the pieces you need without having to purchase excess panels. Only our HTP Scales in MLOK or HTP Scales in KeyMod are offered in 3 or 4 packs.

4. When is "product x" going to be back in stock? We have a live inventory on our site, and do not take back orders as we firmly believe in not accepting payment from our customers until we have a product ready to ship to them. We are machining and manufacturing everything as fast as we can. When we do restock it tends to go very quickly, so we strongly encourage you to sign up for these in stock updates on the product you are seeking. In the interest of of fairness to customers who have signed up for a product restock, we do not disclose inventory replenishment ahead of time.

5. Do the LEAF iron sights include a laser? - No, the LEAF iron sights are just iron sights. We wish we could sell a $1400 laser with a $60 iron sight for free but our accountant won't let us.

6. What rear BUIS should I use for my LEAF site? We designed our LEAF sights to work with any standard height rear sight.

7. Does the CSMR button include the mag catch bar? - No, the CSMR only includes 1 button and 1 spring. 

8. Why is card or sticker on the package is a different color than the item it contained? Packaging cards and stickers are often printed with inks or printers that are unable to capture the exact color as the products. If the item you receive doesn't exactly match the packaging, there is nothing to worry about. This is very common with our TerraCore offerings, the card often is a few shades off of the real thing.

9. Do you offer Military or Responder discounts? As of November 2022 we have discontinued our individual discount programs.

10. TerraCore Color - The color of our G10 TerraCore product can vary slightly from batch to batch. Different cuts during the machining process can also make the color appear different between textures. G10 is a porous material and will dry over time and with use. We oil these panels during production and packaging, and the material will appear lighter as the oil dries out. To restore the darker color, simply apply gun oil with a soft-bristled brush, and wipe off with a non-fibrous cloth. 

11. Blemished items - All blemished items are considered final sale and not eligible for a refund. All of our blemished items are hand stamped with a "B" before packaging.

12. New HTP IR material (NIR): The new HTP XOS scales (and select other products) feature a new Near-Infrared compliant upgrade to our HTP material (NIR). The HTP NIR material was originally formulated for a recent military contract and we decided to carry it over to our commercial line of products as well. The IR additive absorbs Short Wave IR radiation (non-visible light), yet prevents the emission of longer wave IR radiation (visible light).  These properties make the material they are added to virtually invisible when viewed using night vision / FLIR equipment. Look for the “NIR” marking on the back of our HTP line. The new HTP NIR will be coming to the rest of our HTP product line by the end of 2024.



© 2024 RailScales LLC All rights reserved. RailScales®, XOS®, XOS-H®, Solo's™, XOS-W™, HTP®, LEAF®, CSMR®, TerraCore®, HTP NIR™ are registered trademarks of RailScales LLC.

For all patents and trademarks, see