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Questions & Answers
Does this work/fit with the Cz scorpion evo S1? any other parts required? Is there a butt recoil pad for this? What about a cheek riser? Manufacturer Answer

The FSA will only install to a picatinny mount. If you S1 model does not have a picatinny end you would need something like our SI-CEVO-SA-QD. Currently the FSA does not have any other butt recoil pads available aside from the one that is already included. A cheek riser for the FSA is sold separately, SI-FSA-CHEEKRISER.

by Strike Industries, Manufacturer, April 17, 2024
Does this work on a regular AR 15/AR9?I bought two of these from Optics planet after speaking to one of their texts and I don’t see how it goes on. Manufacturer Answer

The FSA will need a rear pic rail to mount onto.

by Strike Industries, Manufacturer, April 2, 2025
Customer Reviews
Helpful Positive Review
Very nice. by JoJo, Verified Owner, March 4, 2025
This dual folding stock is very nice, light, sturdy and if you notice even a slight wiggle when locked open it’s because you need to use the correct gasket sticker ( various mm. in thickness rubber stickers in slots under fold: included with purchase...
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1/1 found this helpful
Helpful Positive Review
Very Solid Arm Brace by JoJo, Verified Owner, March 11, 2025
The double folding stock has two locks which help the brace to NEVER unlatch while at the range. It also has an option to change the brace/ actually “stabilizer” that presses against your forearm, for a butt stock if you have an SBR permit. Really ni...
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1/1 found this helpful
Helpful Positive Review
Not sure why this has a low rating by Danster41, Verified Owner, March 29, 2024
Works great on my Ruger PC Charger! Highly recommended!
1/1 found this helpful
Helpful Positive Review
Works as it should. by MM77, Verified Owner, September 6, 2024
Works as it should, I like that it can fold right or left, I like it enough that I’m probably going to buy another one.
2/2 found this helpful
Helpful Positive Review
Outstanding addition to the scorpion by TPotter, Verified Owner, March 30, 2024
Absolutely one of the most functional stocks I have found for the CZ Scorpion. The dual folding functionality of this stock coupled with the ability to quickly remove it from the platform makes this an excellent addition to a fun piece of hardware. ...
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1/1 found this helpful
Helpful Positive Review
Ruger PC Charger by Danster41, Verified Owner, April 9, 2024
Works great on my Ruger PC Charger, locks in place when folded to either side. Comes with little rubber shims to get a snugg fit.
1/1 found this helpful
Read All 35 Reviews

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Gun Type:
Pistol, Rifle
Gun Make:
AR Platform, CZ, Ruger, SIG Sauer
Gun Model:
AR-10, AR-15, Brugger & Thomet APC9, CZ BREN 2, CZ Scorpion, CZ Scorpion EVO 3, Ruger PC Charger, SIG Sauer MCX
Color:
Black
Finish:
Matte
Hand:
Ambidextrous
Length:
9.44 in
Condition:
New

Code: 3Q-RSF-LB5YJ-SI-FSA-DUAL-STOCK

MPN: SI-FSA-DUAL-STOCK

UPC: 793811766417

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List: $197.95Save $10.00
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Product Info for Strike Industries Dual Folding Rifle Stock

This is the Strike Dual Folding Adapter (FSA) - Stock Edition. The Strike Dual Folding Adapter is a versatile and innovative patented system that offers unparalleled convenience and flexibility. With its intuitive folding mechanism, you can fold the adapter to either the left or right side of your weapon platform. Without the need to reconfigure or reinstall any parts, the provided locking mechanism has a positive lock and ensures its ability to stay in place.image

Deployment is quick and effortless with just a simple upward pull on the bar near the hinge. Its 3-degree tilt angle is designed to help prevent interference with your weapon's ejection port when folded to the right as well. This adapter fits directly onto a 1913 Picatinny interface with built-in locking lugs for secure attachment.

The included Stock end is a great ergonomic option for completing your build. Strike's Dual FSA's name comes from its ability to fold to the left and to the right - as well as its interchangeability to swap out the Stabilizer end to a Stock end, should you desire to have a Short Barrel Rifle (SBR) configuration.

Use it with most 1913 Picatinny rear ends, including the Strike AR Picatinny Stock Adapter, or any factory OEM weapon with a Picatinny rail. With the Strike Dual Folding Adapter – Stock, you get the ultimate modular folding adapter that weighs under 10 ounces.

PLEASE NOTE:
-Dirt and/or sand can hinder folding hinge proper operation.
-Not recommended for use while mortaring firearm to clear malfunctions.
-Expect wear and tear on folding locking mechanism from long term use.
-Be careful, avoid fingers from getting caught during folding and unfolding process.
WARNING:
-Not recommended for use while mortaring firearm to clear malfunctions.
-Before every use, always check proper function of your QD mount and/or sling loop and any wear and tear from use.
-Always have your weapon in the SAFE position when not being fired.
-Always follow all firearms safety rules and never point your weapon at anything you are not willing to destroy.
DISCLAIMER:
-Always check with your state and local laws. We are not lawyers and cannot provide legal advice.
-Stock was designed and intended for use with a rifle setup or registered Short-Barrel Rifle (SBR) setup.
WARNING: California`s Proposition 65

Specifications for Strike Industries Dual Folding Rifle Stock:

Manufacturer: Strike Industries
Gun Type: Pistol, Rifle
Gun Make: AR Platform, SIG Sauer, Ruger, CZ
Gun Model: CZ Scorpion, AR-15, Ruger PC Charger, AR-10, CZ Scorpion EVO 3, SIG Sauer MCX, Brugger & Thomet APC9, CZ BREN 2
Color: Black
Finish: Matte
Hand: Ambidextrous
Length: 9.44 in
Weight: 9.9 oz
Condition: New
Application: Duty, Work, Outdoor, Tactical
Width: 2.09 in
Age Group: Adults
Attachment Type: Picatinny
Activity/Occasion: Sports, Training, Duty, Professional, Tactical, Outdoor
Size: One Size
Height: 4.56 in
Fit: MIL-STD-1913 Picatinny Rail
Seasonal/Temperature Use: All Seasons
Gun Rail: Picatinny
Quantity: Pack
Gender: Unisex

Features of Strike Industries Dual Folding Stock

  • Preassembled with stock rear piece for rifle or registered Short-Barrel Rifle (SBR)
  • Patented first-in-market Picatinny dual folding adapter with intuitive unfolding system
  • Folds left or right anytime without flipping or reconfiguring hinge
  • Adds Stock 9.18 (233.14mm) to overall weapon length
  • Adds 1.02 (26.00mm) to overall weapon length in folded position
  • Positive lock in the folded position, included rubber pads for folding adapter indentation to adjust desired locking tension when fully deployed
  • Pull up on bar near hinge and back for quick deployment when folded
  • 3-degree down tilt to help prevent interference with ejection port when folded to right side
  • Mounts directly to 1913 Picatinny interface with 2 built-in locking lugs
  • Ambidextrous QD sling mounting points Stock
  • Rubber anti-slip buttpad Stock
  • Steel hinge with 6061-T6 Aluminum base, adapter & strut
  • Lightweight at under 10 ounces
  • Modular system with interchangeable parts sold separately (strut, cheek riser, stabilizer & more)

Package Contents:

  • Strike Industries Dual Folding Stock
  • x1 Strike Dual Folding Adapter
  • x4 Rubber Pad For Dual Folding Adapter Indentation To Adjust Desired Locking Tension When Fully Deployed
  • x1 Torx Tool T25
  • x1 Warning Card

Strike Industries Dual Folding Rifle Stock Orderable Models

List of Orderable Models

  • Strike Industries Dual Folding Stock, Ambidextrous, AR-15/AR-10/CZ Scorpion EVO 3/SIG Sauer MCX/Brugger & Thomet APC9/CZ BREN 2/Ruger PC Charger/CZ Scorpion, Black, One Size, SI-FSA-DUAL-STOCK , MPN: SI-FSA-DUAL-STOCK , UPC: 793811766417 , Code: 3Q-RSF-LB5YJ-SI-FSA-DUAL-STOCK

Strike Industries Dual Folding Rifle Stock Unavailable & Discontinued Models

List of Unorderable Models

  • USED Strike Industries Dual Folder Stock, Black, SI-FSA-STOCK, EDEMO4, Used, Condition Fair , MPN: SI-FSA-STOCK-EDEMO4 , Code: 3Q-RSF-LB5YJ-SI-FSA-STOCK-EDEMO4
  • USED Strike Industries Dual Folding Stock, Black, One Size, SI-FSA-DUAL-STOCK, EDEMO7, Used, Condition Fair , MPN: SI-FSA-DUAL-STOCK-EDEMO7 , Code: 3Q-RSF-LB5YJ-SI-FSA-STOCK-EDEMO7
  • USED Strike Industries Dual Folding Stock, Black, One Size, SI-FSA-DUAL-STOCK, EDEMO5, Condition Like New, Inspect and Rebox , MPN: SI-FSA-DUAL-STOCK-EDEMO5 , Code: 3Q-RSF-LB5YJ-SI-FSA-STOCK-EDEMO-RE-A
  • DEMO, Strike Industries Dual Folder Stock, Black, SI-FSA-STOCK , MPN: SI-FSA-STOCK-DEMO , Code: 3Q-RSF-LB5YJ-SI-FSA-STOCK-DEMO
  • USED Strike Industries Dual Folder Stock, Black, SI-FSA-STOCK, EDEMO3, Condition Fair, Used , MPN: SI-FSA-STOCK-EDEMO3 , Code: 3Q-RSF-LB5YJ-SI-FSA-STOCK-EDEMO-US-D
  • USED Strike Industries Dual Folder Stock, Black, SI-FSA-STOCK, EDEMO2, Used, Condition Fair , MPN: SI-FSA-STOCK-EDEMO2 , Code: 3Q-RSF-LB5YJ-SI-FSA-STOCK-EDEMO2
  • USED Strike Industries Dual Folding Stock, Black, One Size, SI-FSA-DUAL-STOCK, EDEMO6, Excellent, Inspect and Rebox , MPN: SI-FSA-DUAL-STOCK-EDEMO6 , Code: 3Q-RSF-LB5YJ-SI-FSA-STOCK-EDEMO-RE-B
  • USED Strike Industries Dual Folding Stock, Black, One Size, SI-FSA-DUAL-STOCK, EDEMO8, Used, Condition Like New , MPN: SIFSASTOCK-EDEMO8 , Code: 3Q-RSF-LB5YJ-SI-FSA-STOCK-EDEMO8
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