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Product Overview

Now shipping with our new custom Torx T20 fastener!

Karve-P® - This polymer version of our popular Karve machined handstop offers much of the same function and versatility at a fraction of the cost. Composed of the same heat-stabilized nylon as our HTP Scales, the Karve-P is also available in four popular industry colors for matching most color schemes. The Karve-P is available in M-LOK or KeyMod variants, so make sure to choose the correct mounting option when placing your order. 

Ships Free and Made in USA

  • XOS-H Scale Compatible
  • Mount Type: M-LOK or KeyMod
  • Footprint: 1-Slot or 2-Holes
  • Height: 1.125"
  • Length: 1.5"
  • Width: 0.625"
  • Weight: 0.34oz w/ hardware
  • Material: HTP® (Injection Molded Glass Filled High Temp Polymer)
  • Color: Black, FDE Tan, Sniper Grey, OD Green
  • Hardware: US Made 416 Stainless M-LOK or KeyMod Nut
  • Fastener: US Made T20 Torx Fastener (M-LOK) or 3/32 Hex Fastener (KeyMod)



© 2024 RailScales LLC All rights reserved. RailScales®, Karve® Karve-P®, HTP®, XOS-H® are registered trademarks of RailScales LLC.

For all patents and trademarks, see


(247 reviews) Write a Review

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  • 5

    Posted by Timothy on Apr 3rd 2024

    Nice rounded feeling that works great on a rifle but even better on the side of a shockwave shotgun. Love it

  • 4
    Karve-P for MCX Spear Lt

    Posted by John B. on Mar 30th 2024

    Bought this along with the QTR stop and 4 slot G10 XOS-H. With the opening positioned to the rear, the karve give a great head placement on the handrail. would recommend.

  • 5

    Posted by Jeff Engel on Mar 21st 2024

    I bought this as a handstop for my Beretta A300 Ultima Patrol shotgun. It's the perfect t size and shape. I already own Rail Scale products on several ARs and really like the quality and look.

  • 5

    Posted by Carson Fernandez on Feb 21st 2024

    You guys are making the best handstop in the game right now. Quality and Service is 10/10. Also my favorite sticker I've gotten from a firearms company in a long time. Keep up the good work!

  • 5
    Incredible Design!

    Posted by James M on Feb 15th 2024

    I’m very pleased with the engineering of this product. It’s an excellent low profile design and it’s aggressive texture really helps maintain a solid grip.

  • 5
    Great minimal handstop

    Posted by Ludy B on Feb 9th 2024

    Ergonomics are very well designed. Looks great on the rifle and makes modern technique of carbine shooting and operation of accessories quite useable. Highly recommend.

  • 5
    Karve p and xos rail covers, and xos- H rail cover

    Posted by LeRoy Peck on Jan 18th 2024

    I recently began poking around and researching rail covers and hand grips for my AR. I discovered railscales, And decided to give them a try In the polymer Version in mlok. I receive my order in three days. With a small amount of trial and error I found the correct positioning for my reach. They attached very easily and securely with the provided mlok Fasteners. They fit precisely and securely. I purchased the dragon scales pattern . The enhanced grip they provide is amazing. I can securely go from low, ready to hi ready. It makes driving the AR to the right or countering in the opposite direction to encounter the left confidence inspiring.The Karve P Provides a constant and secure grip to enhance consistent grip ,and secure shooting platform, making it easy to secure the rifle in the shoulder pocket. The Karve also serves as an excellent barrier mount, making shooting from the mounted position enhanced, as well as providing a great pool grip firing position. The fit and finish as well as great innovation make this product, a superior product that you can’t go wrong with these. Thank you Rail scales for a great American product , well done !!!

  • 5
    Karve p

    Posted by Steve W on Jan 16th 2024

    Wanted something slim line so tried the karve p. After installing, decided it was just what I was looking for so I ordered another one.

  • 5

    Posted by Carson s on Jan 15th 2024

    Awesome, great products and will definitely buy again, very high quality and durable.