Product Specifications

The PSD is designed to conveniently store a variety of items, ranging from slings, tourniquets, magazines, etc. and only limited by what the shooter can fathom / fit into the PSD. The BATFE has determined that use of the PSD on a pistol would not change the pistol’s classification to a short-barreled-rifle (SBR). The PSD fits on any pistol that uses an AR style pistol buffer-tube, 1.2” diameter is ideal, but it will accommodate most AR style pistol buffer-tubes on the market. The PSD can store the following magazine types in any size round-capacity relative to that style of magazine. The retention screws can be adjusted to ensure the PSD does not slide, or rotate on the buffer-tube as well as ensuring ideal retention strength for any stored magazines within the PSD.

How-To Video:


  • The BATFE ruled that installing the PSD does not change the classification of your pistol into a short-barreled rifle (S.B.R.)
  • Fully adjustable for maximum comfort and retention
  • Fully adjustable to fit almost every pistol buffer tube & almost every magazine type*
  • The only pistol device that is anti-rotational and that allows user to adjust the length without damaging the buffer tube.
  • Limitless storage configurations, not just for magazines. Tourniquets, slings and other mission essential gear can easily be stored in the PSD – View all configurations in our gallery
  • Made in America, by Americans, with American tooling and parts

Fitment Guide

*There is no commercial or Mil-Spec standard diameter for pistol buffer tubes. The PSD can easily fit the majority of all pistol tubes ranging from 1.25”- 1.20”


  • Super-tough DuPont Zytel polymer construction
  • Nitrided steel hardware for the ultimate in durability and corrosion resistance
  • Automotive grade tubing to prevent cracking and deformation
  • Vibra Tite thread locker to ensure your PSD and gear stay put!
  • Light Weight- weighs only 6 Oz assembled
  • Due to limitless configurations, the PSD ships unassembled to allow the user to customize the PSD for their optimal settings


** The PSD was designed and created by a disabled veteran.


  • 6 x 1″ 8-32 Truss Head Screw, Phillips Drive
  • 1 x 3/4″ 8-32 Truss Head Screw, Phillips Drive
  • 7 x 1/4″ 8-32 Threaded, Slotted Post
  • 1 x 4″ Length Rubber Vacuum Tubing
  • 1 x Vibra-Tite thread locker
  • 1 x Buffer-tube Cover
  • 1 x Buffer-tube Spacer
  • 2 x Storage Wings

Important Links

View ATF Letter

Please note: Pistol Mounted Solutions has changed the nomenclature from Pistol-Mounted Storage Device (PMSD) to Pistol Storage Device (PSD) since the ATF letter was written.

View Safety Warnings