Strike Industries Flat Wire Spring, 10" L X 0.75" ID X 0.94" OD - AR-FWS-P

Strike Industries Flat Wire Spring, 10" L x 0.75" ID x 0.94" OD - AR-FWS-P - Buffer Spring for AR-15 - view 1
Strike Industries Flat Wire Spring, 10" L x 0.75" ID x 0.94" OD - AR-FWS-P - Buffer Spring for AR-15 - view 2
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Strike Industries

Overview

The Strike Industries Flat Wire Buffer Spring is designed for those looking to enhance the performance of their AR-15 builds. With a length of 10 inches, this flat wire spring offers a unique design that can improve reliability and reduce wear over time compared to traditional round wire springs. It’s particularly well-suited for mid-length gas systems and is commonly found in builds chambered in 5.56 NATO, ensuring optimal cycling and function.

Specifications

MPNARFWSP
Spring TypeFlat Wire
Length10

Available Merchants(6)

Prices checked

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Classic Firearms logo
Classic Firearms
Shipping varies
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In Stock
$14.95
KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
In Stock
$14.95
Optics Planet logo
Optics Planet
Free shipping over $49
Shipping Speed
In Stock
$15.99
Palmetto State Armory logo
Palmetto State Armory
$9.99 shipping (free over $99)
Shipping Speed
In Stock
$16.99
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
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Out of Stock
$14.95
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
Out of Stock
$14.99

October 2026 so far on GunPartPicker

Strike Industries Flat Wire Spring, 10" L X 0.75" ID X 0.94" OD - AR-FWS-P is the second most added buffer spring on GunPartPicker so far in October 2026, behind the Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C, with about 13% of all buffer springs added to builds. That's its 3rd straight month at #2. Builds with this buffer spring are mostly chambered in 5.56 NATO (71%, then .223 Wylde 9%), split between mid-length (53%) and carbine-length (20%) gas systems, and mostly AR-15 (95%).

Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 4 of the 6 retailers we track have it in stock. The best price crept up from $14.99 to $16.99 over September 2026. Buying today, the lowest price is $14.95 at Classic Firearms, which matches the best price we saw in September.

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Frequently Built With

The part most often added in each category by hundreds of builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

94.8%
AR-1594.8%
AR-103.5%
AR-91.7%

Caliber

70.9%
5.56 NATO70.9%
.223 Wylde9.4%
300 Blackout7.9%
.308 Win4.4%
9mm2.5%
Other5%

Gas System

52.7%
Mid-Length52.7%
Carbine20%
Pistol13.3%
Rifle12.7%
Blowback0.7%
Other0.7%

Builds Featuring This Part

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Builds in the community that include the Strike Industries Flat Wire Spring, 10" L x 0.75" ID x 0.94" OD - AR-FWS-P

BuildPartsTotal
hnghn build
hnghn
23$2881.67
Backup 5.56 build build
Backup 5.56 build
31$7690.64
Home defense 16" 5.56 build
Home defense 16" 5.56
29$3632.59
wilson combat 14.5" .223 wylde build
wilson combat 14.5" .223 wylde
24$1242.92
for home defense 11.5" build
for home defense 11.5"
30$4013.57
Yankee hill machine 30" 5.56 build
Yankee hill machine 30" 5.56
22$2462.01
My build build
My build
23$1807.82
Carbine 14.5" build
Carbine 14.5"
26$2826.76
PSA 9" build build
PSA 9" build
20$1075.81
16" build build
16" build
26$2728.33
truck gun 16.5" 5.56 build
truck gun 16.5" 5.56
25$2235.06

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