By David Crane

david (at) defensereview (dot) com

Photo(s) Credit: Strike Industries (SI)

August 28, 2016

Last updated on 8/28/16.

A quality action/buffer spring is one of the most important parts in a tactical AR carbine/SBR (Short Barreled Rifle), as it’s crucial for reliable functioning, proper timing, and the required level of weapon durability. So, you shouldn’t skimp on one, nor should you choose one carelessly. Now, for years, we here at DefenseReview (DR) have been big fans of Sprinco AR (AR-15) action/buffer springs, particularly since highly-knowledgable guys like DR writer/contributor Mike Pannone use and swear by them. And, we still are. Sprinco springs are great. However, it looks like Sprinco just got some more competition with the introduction of the Strike Industries SI AR Flat Wire Spring action/buffer spring. Strike Industries has really been on a new-product-development tear as of late (for the last few years, actually), developing so many new high-quality, great bang-for-the-buck products so quickly that we can’t even keep up with (or keep track of) all of them.

Anyway, a little more competition in the tactical AR action/buffer spring arena is a healthy thing, and quality products are always welcome here, period. So, we’re very glad to see the SI AR Flat Wire Spring come to market, and we can’t wait to try one out. More specifically, we can’t wait for DR writer/contributor and chief new-product tester Jeff Gurwitch to try one out for us. Gurwitch is both a highly-combat-experienced military SOF (Special Operations Forces) assaulter/operator AND a 3-Gun competitive shooter, so if he says the new spring’s good to go, it’s good to go.

Our three primary initial questions are 1) What’s the SI AR Carbine Flat Wire Spring’s length and weight? 2) Does SI plan to introduce additional SI AR Carbine Flat Wire Springs of different weights and lengths for different AR setups with different buffer weights and barrel lengths, including 10.3″-12.5″? And, 3) How does the SI AR Carbine Flat Wire Spring stack up against the comparable Sprinco action/buffer spring?

In the meantime, here’s the skinny on the SI AR Flat Wire Spring, directly from the company’s website:

“AR Carbine Flat Wire Spring

$19.95

SKU: SI-AR-FWS-C

Details

The SI Carbine Flatwire Spring is an economical, easy upgrade to any AR system with a carbine buffer system. The flatwire spring increases service life of the platform, smooths out the shooting cycle, and greatly outlasts the stock spring. Increased bolt load, in addition to decreased compression force increases reliability in cycling. Additionally, all SI Flatwire springs are cryogenically stress relieved to provide greater consistency, longer spring life, and greater resilience to high cyclic rates. At a cost not much greater than stock carbine springs, the SI Flatwire is an easy option for those either looking to replace worn buffer springs or begin new builds.

Package includes:

– 1x Carbine Length Flatwire Spring

Features:

– Cryo-cycled 17-7 ph steel for strength, reliability and longevity

– Decreased harmonics lessens system vibration for faster follow up shots.

– Increased bolt load for more positive feeding

– Reduces distracting AR ‘twang'”

Company Contact Info:

Strike Industries (SI)

P.O. Box 28137

Santa Ana, CA 92799

Email Contact Page: http://strikeindustries.com/shop/index.php/contact/

Website: http://strikeindustries.com

© Copyright 2016 DefenseReview.com (DR). All rights reserved. This material may not be published, broadcast, rewritten or redistributed without receiving permission and providing proper credit and appropriate links. If you are reading this article anywhere other than DefenseReview.com, please email us the website address/URL (where the unauthorized DR article reprint is located) at defrev (at) gmail (dot) com. Thank you.

Related Articles:

High Ready Weapons-Handling Position for Combat/Tactical Shooting Applications and (Direct-Action) Military Special Operations: High Ready or Not, Here I Come!

Strike Industries SI Strike Switch 60/90-Degree AR-15 Safety/Selector Switch with Patent-Pending Push/Toggle-Action Selector Design and Ambi (Ambidextrous) Upgrade Capability for ‘Extreme Ergonomics’!

Strike Industries SI QD Slide Cover Plate (Back Plate) for Glock Pistols with Patent-Pending Push-Button Design for Quick Takedown and Even Easier Maintenance!

Strike Industries SI Mega Fins XL KeyMod and M-LOK Rail Systems with SI LINK Rail Sections with Dual-Interface Design for Tactical AR-15 Rifle/Carbine/SBR’s!

Strike Industries SI VENOM Flash Hider (FH)/Suppressor: 4-Prong, Open-Prong Flash Hider Eliminates Nearly 100% of Muzzle Flash!

Strike Industries SI Ricci-ERS (Extended Rail Section) Cantilever Rail Section for Tactical AR-15 Carabine/SBR’s

Strike industries SI Ambush Low-Profile Sling Loop (LPSL) for Tactical AR-15 Rifle/Carbine/SBR’s: Slick, Intelligent Design for Optimal Combat/Tactical Shooting Utility

Strike Industries SI AR Steel Gas Block: Lightweight Heptagonal Ultra-Lo-Pro (Low-Profile) Gas Block for Your Next Direct-Gas Impingement (DGI) Tactical AR-15 Rifle/Carbine/SBR Build!

Strike Industries SI Viper Handguard Carbine-Length Tactical Handguard for AR-15/M4/M4A1 Carbine with A2 Front Sight/Gas Block!

Strike Industries AR Mega Fins KeyMod Tactical Handguard/Rail System with Rail Accessories for Tactical AR-15 Carbine/Rifles!

The Big M4 Myth: ‘Fouling caused by the direct impingement gas system makes the M4/M4A1 Carbine unreliable.’

An Operator’s View of M4/M4A1 Carbine (and AR-15 Carbine) Malfunctions

M4/M4A1 Carbine Reliability Issues Part II: Diagnosing the root cause.

M4/M4A1 Carbine Reliability Issues: Why They Occur, and Why They’re Our Fault!

Teal Blue Bravo (TBB) PDQ Ambi-Bolt Release (ABR) Ambidextrous Bolt Carrier Group (BCG) Catch/Release Button/Lever for Tactical AR-15 Rifle/Carbine/SBR’s!

Knight’s Armament Company Redback One (RB1) KAC SR-16 E3 CQB MOD 2 11.5-inch Select-Fire Tactical AR-15 SBR (Short Barreled Rifle) with High Combat Optic Mount for Fast and Accurate CQB-to-Medium Range Dynamic Gunfighting/Shooting! (Video!)

V Seven (V7) Weapon Systems Enlightened Tactical Handguard/Rail Systems: ‘Magical’ 2099 Lithium-Aluminum Alloy ‘Most Advanced Aluminum on the Planet’!

Cobalt Kinetics CARS (Cobalt Advantage Reloading System) Update: CK Evolve Combat/Competition AR-15 Rifle/Carbine and New Black Line Tactical AR’s with CARS 2.0 Coming Soon! (Photos and Video!)

Cobalt Kinetics Evolve 3-Gun Competition/Tactical AR-15 Rifle/Carbine/SBR with Cobalt Advantage Reload System (CARS) Magazine Auto-Eject/Bolt Carrier Group (BCG) Auto-Release Feature: Coming Soon to a Competition or Combat Theater Near You!

TNVC/Unity Tactical TAPS (Tactical Augmented Pressure Switch) Programmable Tape Switch for Tactical AR-15 Rifle/Carbine/SBR’s and PDW’s! (Video!)

Midwest Industries MI G3 M-Series Free-Float Tactical AR-15 Handguard with Seven-Sided M-LOK-Compatible Rail System and Anti-Slide/Anti-Twist Torque Plate! (Video!)

Midwest Industries MI SP-Series Free-Float Tactical AR-15 Handguard M-LOK Compatible Rail System for Integrally/Recessed-Suppressed Tactical AR-15 Carbine/SBR’s! (Video!)

Midwest Industries MI 16-Inch Mid-Length Rifle M-LOK Compatible Tactical AR-15 Carbine with MI SSM Free-Float M-LOK Tactical Handguard and Distressed/Patinated Finish!

Nous Defions/Arsenal Democracy AD-16 (Billet Receivers) and AD-15 (Forged Receivers) 5.56mm NATO/300BLK Tactical AR-15 Rifle/Carbine/SBR’s with Ambi (Ambidextrous) Controls, KeyMod or M-LOK Modular Tactical Handguards/Rail Systems and Ballistic Advantage Barrels! (Video!)

Arsenal Democracy AD PDW 8.5″ 5.56mm/300 Blackout (300BLK) Tactical AR-15 SBR (Short Barreld Rifle) with AD-PDW Stock Minimalist Buttstock and Ambi Controls for Dynamic CQB/CQC Gunfighting, Military PSD, and Vehicle Ops! (Video!)

LMT Defense MARS-L (Modular Ambidextrous Rifle System-Light) M7LB2/M7LB2T Ambi (Ambidextrous) Tactical AR-15 Lower Receiver Build with Leupold D-EVO (Dual-Enhanced View Optic) 6x20mm/LCO (Leupold Carbine Optic) 1X/1-MOA-Dot Combo Sighting System! (Video!)

LMT Defense LM8PDW556 / LM8PDW300 PDW (formerly the ‘Compressor’): 10.5-Inch-Barreled 5.56mm NATO/300BLK Tactical AR-15 SBR/PDW (Short Barreled Rifle/Personal Defense Weapon) with Modified/Shortened SOPMOD Stock (Buttstock) and Weighted Bolt Carrier Group (BCG)! (Video!)

Patriot Ordnance Factory POF-USA Revolution Very-Small-Frame 7.62x51mm .308 Win. Tactical Piston AR Rifle /Carbine/SBR: The ‘Smallest, Lightest 7.62mm/.308 Weapon System in the World’?! (Video!)

Patriot Ordnance Factory POF-USA P-300 (also written P300) .300 Win Mag (300WM) Tactical Piston AR Rifle/Carbine: SERIOUS Semi-Auto AR Hitting Power! (Video!)

Beck Defense .510 Beck Tactical AR Rifle/Carbine/SBR with Lancer Systems L12AWM Advanced Warfighter Magazine and ‘Controlled Chaos’ Hybrid and Nano/RDX Explosive Rounds!

Kalashnikov USA AK Alpha Tactical Rifle/Carbine with Ambi (Ambidextrous) Controls and Hartman MH1 Reflex Sight Red Dot Combat Optic: Next-Step AK-47/AKM for the 21st-Century! (Videos!)

Ferfrans SOAR-P 6.5 Grendel Select-Fire/Full-Auto Tactical Piston AR (AR-15-type) Rifle/Carbine/SBR Prototype: Ultimate All-Purpose Tactical AR-15-Type Weapon System for Military Combat? (Video!)

FERFRANS SOAR-P Upper Receiver Setup with Rate Reduction System/Delayed Sear Activation System (RRS/DSAS) Versus Stock Adams Arms (AA) Tactical Piston AR SBR/Sub-Carbine Upper Receivers Mounted on Colt M4A1 Carbine Select-Fire Lower: Full-Auto/Semi-Auto Range Test on Video!

U.S. Military Operator Conducts 2x2x2 Tactical Shooting Drill on Semi-Auto and Full-Auto Using MK18 Mod 1/M4A1 CQBR Upper Receiver SBR with FERFRANS (FF) DSAS/RRS BCG and FF CQB MMBS/CRD! (Video!)

FERFRANS CQB Modular Muzzle Brake System (MMBS) with FF Concussion Reduction Device (CRD) for Semi-Auto-Only and Select-Fire/Full-Auto Tactical AR-15 Carbine/SBR’s (Video!)

Chris Costa of Costa Ludus Hits the “Happy Switch” and Goes Full-Auto with the FERFRANS SOAR-P Select-Fire 5.56mm NATO/.223 Rem. Piston AR SBRs/Sub-Carbines/Carbines (Videos!)

Falcon Security Group (FSG) Demonstrates FERFRANS HVLAR (High Volume Light Automatic Rifle) Lightweight Mag-Fed Infantry Automatic Rifle (IAR)-Type Piston/Op-Rod AR Carbine: Who needs an FN M249 SAW Belt-Fed Light Machine Gun? (Video!)

FERFRANS HVLAR (High Volume Light Automatic Rifle) IAR-Type Piston-Driven AR Carbine Performs 150-Round Full-Auto Mag Dump with ARMATAC SAW-MAG 150-Round Double-Drum Magazine (Video!)

Videos: Controlled One-Handed 30-Round Full-Auto Mag Dump and Short Bursts with 5.56mm NATO Select-Fire FERFRANS SOAR-P Piston AR SBR/PDWs

Video: Full-Auto Mag Dumps with MWG 90-Rounder-Equipped FERFRANS Specialties SOAR Select-Fire 5.56mm NATO Piston-Driven AR SBR/Carbines