FREE SHIPPING & FREE RETURNS*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
Does this work for an AR9 Manufacturer Answer

Yes, it works, if you use a 1.25" pistol tube.

by Charles Shi, Manufacturer, April 16, 2025
Customer Reviews
Helpful Positive Review Great for a fin by Donny W., August 31, 2022
This is just the thing for my ar pistol build. For the price, it is a great buy. The screws are perfectly to spec and lock it down tightly to the buffer tube. The plastic does not feel cheap at all. Unless you are getting a Maxim for 10X the pric...
Read More...
4/4 found this helpful
Most Recent Reviews Presma AR Pistol Stabilizing Fin by OD, Verified Owner, August 17, 2025
It was easy to install. It looked really good on the. Gun The quality is excellent.
Most Recent Reviews wont tighten by tg, Verified Owner, July 17, 2025
Feels like good quality but it won’t tighten down.
Most Recent Reviews AR pistol Fin by jsc, Verified Owner, April 25, 2025
Got the fin as opposed to a brace bc the fin was $18. It works great on my 7”, 5.56 pistol.
Most Recent Reviews Okay didn't work forme by Pdog, Verified Owner, October 13, 2024
Didn't work on the spikes tactical tube for pistol ar. Couldn't get tight enough to stay in place. Why I didn't recommend. Wouldn't have ordered pistol tube had I known and don't have any rifle ones to check
Read All 5 Reviews
Color: Black Gun Type: Rifle Stock/Brace Material: Polymer Condition: New

Code: 2HC-SBC-SF253AR-AAST18

MPN: AAST18

UPC: 840354126274

List: $17.99
$17.09

Product Info for Presma AR Pistol Stabilizing Fin

This Stabilizing Fin incorporates a flexible stabilizing area which rests against the inside of the forearm when in the firing position. If desired, a standard sling may be wrapped around the Fin and forearm, further stabilizing the pistol to the forearm in both horizontal and vertical planes. This high-strength polymer product fits all pistols equipped with a standard AR pistol buffer tube (1.25in in diameter), for a secure, worry-free fit. The Stabilizing Fin is a lightweight, clamp-on, ergonomic, AR pistol enhancement and acts as a forearm buttress.image

Does not fit adjustable tubes (Mil-Spec/Commercial) or A2 rifle tubes. U.S. Patent D897,480

Specifications for Presma AR Pistol Stabilizing Fin:

Manufacturer: Presma
Color: Black
Gun Type: Rifle
Stock/Brace Material: Polymer
Condition: New

Package Contents:

  • Presma AR Pistol Stabilizing Fin
  • Screw
  • Allen wrench

Presma AR Pistol Stabilizing Fin Orderable Models

List of Orderable Models

Presma Stabilizing Fin for AR Pistols, 223/5.56/.308, Black, AAST18 , MPN: AAST18 , UPC: 840354126274 , Code: 2HC-SBC-SF253AR-AAST18

Presma AR Pistol Stabilizing Fin Unavailable & Discontinued Models

List of Unorderable Models

USED, Presma Stabilizing Fin for AR Pistols, 223/5.56/.308, Black, AAST18 , MPN: AAST18-EDEMO , Code: 2HC-SBC-SF253AR-AAST18-EDEMO-RE-C
Compare (0)