(9 reviews) Write a Review

Product Overview

New for 2022!

Polymer RSBM-P Vertical Grip - A polymer variant of our popular RSBM™ vertical grip, that features grooved cuts that was originally developed for a contract end user. Weighing in a scant 1.13oz, it is the lightest polymer MLOK vertical grip on the market, a 1:1 copy of the machined aluminum version. Extra care was given to design the mold to mimic a look simialr to matte anodized aluminum. Designed for PDW and shorter barrel setups, its ergonomics also find itself at home on carbines as well. The cylinder of the grip is offset 0.140" to allow for fine adjustment in its already small footprint by alternating its direction 180 degrees. When used as a broom handle style grip, the RSBM-P™ allows for a 3 fingered grip with the pinky over hanging the bottom. XOS-H® scale compatible.

Only available in MLOK.

Ships Free and Made in USA

  • 1 MLOK Slot 
  • XOS-H® scale compatible
  • Length: 2.488"
  • Width: 1.13"
  • Outside Diameter: 1.42"
  • Weight: 2 oz with hardware
  • Injected Molded Glass Filled Polymer


(9 reviews) Write a Review

9 Reviews Hide Reviews Show Reviews

  • 5
    Absolutely the best Vertical grip on the market

    Posted by Jason Helper on May 6th 2023

    I own just about every VG & AG on the market, as of now Rail Scales has surpassed everyone with this new Vertical grip. Keep up the good work guys

  • 5

    Posted by Shawn on Apr 19th 2023

    Top notch

  • 5

    Posted by B on Feb 21st 2023

    The quality of this product speaks for itself. hands down a 5 out of 5

  • 4

    Posted by Aron on Feb 15th 2023

    Very nice grip, just too short. Could use another 3/4”-1” in length. Works great as a hand stop for C clamp grip, but as a vertical fore grip, it feels like a sub-compact pistol with no room for pinky finger. Products are top notch quality though.

  • 5

    Posted by Brooks Griswell on Jan 23rd 2023

    As always another premium product from railscales with extremely Quick shipping. Shipped same day. Railscales are ahead of the game.

  • 5
    Quality grip

    Posted by Joe on Jan 21st 2023

    I was looking for another style and fit from the rest of the foregrip on the market. The RSBM was perfect. Its slightly longer than others and fit perfectly in my hand. Good quality molding as well.

  • 5

    Posted by William Heerebout on Jan 7th 2023

    I added this also to the Bren2 76 2 x 39 just the right look. Thanks.

  • 5
    Works as intended

    Posted by Casey Adney on Dec 8th 2022

    Would recommend.

  • 5

    Posted by Luke B on Dec 7th 2022

    I like things that are made well. This is one of those products.