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Strike Industries AR Pistol Flat Wire Spring SI-AR-FWS-P Color: Black, Fabric/Material: Steel, 36% Off

Strike Industries AR Pistol Flat Wire Spring, 10 in, Stainless Steel, One Size, SI-AR-FWS-P
Strike Industries AR Pistol Flat Wire Spring, 10 in, Stainless Steel, One Size, SI-AR-FWS-P
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Strike Industries AR Pistol Flat Wire Spring, 10 in, Stainless Steel, One Size, SI-AR-FWS-P

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Questions & Answers
Is a pistol spring lighter weight than carbine weight spring? (example: say 13lbs to 15lbs. compressed) ? weight meaning compressing weight. Expert Answer

The weight of the spring can vary on design and intended purpose. Strike Industries does not provide the weight of their AR Pistol Flat Wire Spring. It is specifically designed for pistol length buffer tubes. The weight of your buffer will greatly determine reliability and functionality compared to the spring. Email us at Techsales@opticsplanet.com for more information.

by Ethan, Gear Expert, January 26, 2023
Is this flat wire buffer spring compatible with a SI h3 buffer in a 7.5" AR pistol? Expert Answer

The Strike Industries AR Pistol Flat Wire Spring will work with the Strike Industries H3 Buffer in an AR Pistol.

by Hunter, Gear Expert, October 27, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Great Buffer Spring by JD, Verified Owner, March 25, 2021
Does everything they claim it does. My only complaint is that the buffer doesn't seat as well as others but it operated perfectly in a 10" 458 SOCOM. Smooth, strong, quiet and seems pretty tough. Swapped out a couple different weighted buffers whi...
Read More...
5/5 found this helpful
Helpful Positive Review
It did what the description says it was supposed to do by Ryan, Verified Owner, March 29, 2021
If youre running some type of rapid fire trigger on your pistol, this spring will not only help your AR pistol run softer and smoother but also help mitigate bolt bounce (a common cause of light primer strikes.) It’s not just your buffer weight that ...
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5/5 found this helpful
Helpful Positive Review
strike industies ar pistol flat wire sping by John Vega, Verified Owner, March 2, 2024
Helps with flatter shots. Gets rid of that twang noise in the buffer tube
1/1 found this helpful
Helpful Positive Review
Strike Industries AR Pistol Flat Wire Spring by Steven, Verified Owner, February 13, 2024
The Strike Industries AR Pistol Flat Wire Spring is a great upgrade for any AR pistol build. The flat wire design allows for a more reliable and consistent feeding process, improving overall firearm performance. The construction of the spring is top...
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1/1 found this helpful
Most Recent Reviews
A spring is a spring by HC, Verified Owner, December 18, 2025
I bought into the hype of all the 5 star reviews here. Recoil, sounds, all feels the same as the stock round wire spring. I wasted my money, but at least it wasn't too much. A buffer spring is a buffer spring when used in a naturally hard kicking ...
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Most Recent Reviews
Twang Away by Pete, Verified Owner, October 7, 2025
I was never really bothered by spring "twang", but that being said this spring removes the sound. Coupled with the hydraulic buffer in my 9MM PCC and follow up shots are faster on target. Flatter shooting and less "smack/pop" on the shoulder helps ...
Read More...
Read All 6 Reviews
Color:
Black
Fabric/Material:
Steel
Gun Make:
AR Platform
Gun Type:
Rifle
Length:
10 in
Condition:
New

Code: 3Q-BUS-ARPFS-SI-AR-FWS-P

MPN: SI-AR-FWS-P

UPC: 793811763461

List: $25.35Save 37%
$15.99

Product Info for Strike Industries AR Pistol Flat Wire Spring

The SI Pistol Flat Wire Spring is an economical, easy do-it-yourself upgrade to any AR system with a Pistol Length Buffer System. The Flat Wire Spring design packs more energy than traditional round wire springs, giving it increased bolt power. Known for efficiency since the Flat Wire Spring is able to store a larger amount of energy in a smaller space. Having a larger surface area, the Flat Wire Spring distributes impact more evenly and reduces wear and tear outlasting the stock spring. Flat WIre Spring design also has less compressing force which increases reliability in cycling and is more resistant to friction and buckling.image

WARNING: California`s Proposition 65

Specifications for Strike Industries AR Pistol Flat Wire Spring:

Manufacturer: Strike Industries
Color: Black
Fabric/Material: Steel
Gun Make: AR Platform
Gun Type: Rifle
Length: 10 in
Condition: New

Features of Strike Industries AR Pistol Flat Wire Spring

  • Increased ruggedness, more efficiency and more bolt power
  • No more AR "TWANG"
  • Decreased harmonics lessens system vibration for faster follow up shots to keep you on target

Package Contents:

  • Strike Industries AR Pistol Flat Wire Spring
  • x1 Pistol Length Flat Wire Spring

Strike Industries AR Pistol Flat Wire Spring Orderable Models

List of Orderable Models

  • Strike Industries AR Pistol Flat Wire Spring, 10 in, Stainless Steel, One Size, SI-AR-FWS-P , MPN: SI-AR-FWS-P , UPC: 793811763461 , Code: 3Q-BUS-ARPFS-SI-AR-FWS-P

Strike Industries AR Pistol Flat Wire Spring Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Strike Industries AR Pistol Flat Wire Spring, 10 in, Stainless Steel, One Size, SI-AR-FWS-P , MPN: SI-AR-FWS-P-EDEMO , Code: 3Q-BUS-ARPFS-SI-AR-FWS-P-EDEMO-RE-A
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Last updated 2026-07-07 UTC.