• Ultra-lightweight and compact
  • Only uses 1 M-LOK slot or 2 KeyMod Holes
  • Can be mounted on the bottom or either side in a forward or reverse direction
  • Aggressive texture for traction
  • Quick installation
  • Made in U.S.A.


RailScales Karve-P Polymer Handstop for M-LOK & KeyMod Rail



  • Material: High Temperature Polymer
  • Weight: 0.3 oz.
  • Width: 0.625"
  • Length: 1.573"
  • Height: 1.125"


  • Any firearm with KeyMod or M-LOK system


  • 1x Karve-P Polymer Handstop
  • 1x M-LOK or KeyMod Hardware Kit
  • 1x Allen Key


When you’re ready to add a hand stop to your weapons platform. There are many to choose from but none are as versatile as the RailScales Karve-P models that are now on the market. You will save weight and gain control with a Karve-P polymer hand stop on your weapon.

Available in Both KeyMod and M-LOK

If you need an M-LOK handstop the Karve-P Polymer is the one. Whether forward or reverse this hand stop adapts in seconds to accommodate your grip preference. Maybe your rail needs a KeyMod handstop, not a problem, the Karve-P also available in KeyMod configuration. The Karve-P installs and easily adapts to your grip choice. It is lightweight and reversible to match your shooting style. That is a true four for the price of one deal.

American Quality for A Quality American

This Karve-P KeyMod / M-LOK handstop is crafted from a high-temp polymer material that is virtually indestructible. The people at RailScales have created the Karve-P Polymer, a compact, ultra-light, and durable handstop. They work hard to maintain high quality while building American jobs and still keeping a great price point. The Karve-P can be yours in either Black, FDE Tan, or Sniper Grey to match your build. So, there is also one that will look great under your rail.

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Reviews (3)

  • Perfect hand stop for short barrel AR pistol

    Posted by Tom on 30th Oct 2019

    Very pleased with this unimpressive looking polymer handstop. A real finger saver keeping you from serious injury without impeding your grip on that short barrel AR pistol

  • Great handstop

    Posted by Doc J on 2nd Oct 2019

    I love these. Fit great. Feel great. Run great. Price is reasonable. Aside from the look it’s hard for me to perceive weight difference when mounted compared to their G10 cousin. I have them on both my primary 300blk 10.5” and 556 work/duty rifle.

  • Impressed

    Posted by Youngblood on 25th Jun 2019

    I wasn't sure how I'd like the polymer handstop. It looked cool enough, and Railscales has a great rep so I figured why not? I wasn't disappointed. Feels great, well made, and gives me exactly the grip I was after. Being able to reverse it gives you 2 different feeling options depending on your preference. Love it!

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