Toggle menu
+1 (888) 318-8540 | sales@msrarms.com
  • Gift Certificate
  • LoginorSign Up
  • 0
MSR Arms
×
×

    Main Menu

  • Shop by Brand
  • MSR Outlet
  • Contact Us
  • Blog
  • Shop By Category

  • AR Platform
    • Gas Systems
      • Bolt Carriers & Parts
      • Gas Blocks
      • Gas Tubes
    • Lower Receivers & Parts
      • Bolt Releases
      • Grips (Pistol & Forend)
      • Lower Parts Kits
      • Other Lower Parts
      • Safety Selectors
      • Takedown & Pivot Pins
      • Trigger Guards
      • Triggers
      • Magazine Releases
      • 80% Lowers & Jigs
    • Rails & Handguards
      • Forend grips
      • Handguards
      • Rail & Handguard Parts
    • Stocks & Stock Components
      • Buffer Tubes
      • Buffers & Springs
      • End-plates & Other Parts
      • Stocks
    • Upper Receivers & Parts
      • Charging Handles
      • Complete Upper Builds
      • Complete Upper Receivers
      • Ejection Port Covers
      • Forward Assists
      • Other Upper Receiver Parts
      • Stripped Upper Receivers
    • Barrels & Muzzle Devices
      • Other Barrel Parts
      • Rifle & AR Pistol Barrels
      • Muzzle Devices
    • CZ Scorpion
  • AK Platform
    • AK Barrels & Muzzle Devices
    • AK Grips
    • AK Handguards
    • AK Optics & Sights
    • AK Stocks
    • AK Support
    • AK Triggers
  • Shotgun
    • Mossberg 500
    • Remington 870
  • Bolt Action Rifle
    • Chassis
    • Remington 700
  • Handgun
    • Sig P320
      • Barrels
      • Compensators
      • Slides
      • Triggers
  • Ammunition
    • BB and Pellet
    • CA Certified Lead Free
    • Pistol Caliber
      • 10mm
      • 22 Short
      • 40 Cal.
      • 9mm
    • Rifle Caliber
      • 17 HMR
      • 17 Hornady Mach 2
      • 17 Hornet
      • 17 Remington FireBall
      • 17 Winchester Super Magnum
      • 204 Ruger
      • 218 Bee
      • 22 Hornet
      • 22 Long
      • 22 LR
      • 22 Nosler
      • 22 TCM
      • 22 Winchester Automatic
      • 22 WMR
      • 22 WRF
      • 22-250 Remington
      • 220 Swift
      • 222 Remington
      • 223 Remington
      • 224 Valkyrie
      • 30 Carbine
      • 300 Blackout
      • 308 Winchester
      • 5.56 X 45mm NATO
      • 6.5 Grendel
      • 7.62 x 51mm NATO
    • Shotgun
      • 20 Gauge 2.75"
      • 20 Gauge 3"
      • 12 Gauge 1.75"
      • 10 Gauge
      • 12 Gauge 2.75"
      • 12 Gauge 3"
      • 12 Gauge 3.5"
      • 16 Gauge 2.75"
  • Optics & Sights
    • Back-up Sights
    • Binoculars
    • Magnified Optics
    • Magnifiers
    • Optics Mounts
    • Other Optics Parts
    • Pistol Sights
    • Red Dot Optics
    • Spotting Scopes
  • Lights & Lasers
    • Lasers
    • Lights
  • Care & Maintenance
    • Cleaning Tools & Kits
    • Cleaning Chemicals
  • Shooting Gear
    • Bipods, Tripods & Monopods
    • Eye & Ear Protection
    • First Aid
    • Sling & Sling Attachment Points
    • Tools
  • Magazines
    • Magazine Accessories
    • Pistol Magazines
      • CZ 2075 RAMI
      • Glock 19
      • Glock 21
      • Ruger MAX-9
    • Rifle Magazines
  • Lifestyle
    • Cases, Bags & Packs
    • Clothing
    • Furnature & Décor
    • Gifts & Novelties
    • Knives
    • Locks and Safes
    • Multi-Tools
  • Hunting
  • Duty Gear
    • Belts
    • Plate Carriers and Chest Rigs
    • Pouches
  • Concealed Carry
  • Restrictive State Compliance
  • Gift Cards
  • Best Sellers
  • MSR Outlet
    • Accessories
    • Barrels
    • Bolt Action
    • Gas Systems
    • Handguards
    • Lowers
    • Magazines
    • Optics
    • Stocks
    • Uppers
  • Shop By Brand

  • Real Avid
  • Phase 5
  • Magpul
  • Daniel Defense
  • EOTech
  • Aguila Ammunition
  • CMMG
  • Luth-AR
  • Bravo Company
  • Midwest Industries
  • Odin Works
  • Radian Weapons
  • LBE Unlimited
  • Rise Armament
  • SLR Rifleworks
  • SOG Knife & Tool
  • Hogue
  • Surefire
  • Cross Armory
  • FailZero
  • Wheeler
  • Howard Leight
  • North American Rescue
  • Radians
  • Tyrant Designs
  • Battle Arms Development
  • FAB Defense
  • GPS Tactical
  • Grey Ghost Gear
  • Hexmag
  • Sig Sauer
  • Spike's Tactical
  • Steiner
  • Armaspec
  • Ballistic Advantage
  • Geissele Automatics
  • Holosun Optics
  • Meprolight
  • Strike Industries
  • Accu-Tac
  • Aero Precision
  • Agency Arms
  • ALG Defense
  • Angstadt Arms
  • B5 Systems
  • Black Rain Ordnance
  • Fortis
  • Harris Engineering
  • Hera Arms
  • Indian Creek Designs
  • Seekins Precision
  • TriggerTech
  • Trijicon
  • VG6 Precision
  • Vltor Weapons Systems
  • Yankee Hill Machine
  • A.R.M.S. Inc.
  • Advanced Technology Incorporated (ATI)
  • Badger Ordnance
  • Bootleg
  • CMC Triggers
  • Griffin Armament
  • KNS Precision
  • LanTac USA
  • Leapers UTG
  • NightStrike
  • Plano
  • PMC Ammunition
  • Primary Weapons Systems
  • Adaptive Tactical
  • Amend2
  • Ammunition Storage Components
  • Apex Tactical Specialties
  • Blue Force Gear
  • Criterion Barrels
  • Elftmann Tactical
  • Glock
  • Hiperfire
  • Inforce
  • Juggernaut Tactical
  • Lancer
  • LWRC International
  • Mission First Tactical
  • MSR Arms
  • Nordic Components
  • Q
  • Radical Firearms
  • Sharps Bros.
  • Stern Defense
  • Streamlight
  • TekMat
  • Timney Triggers
  • Tipton
  • WMD
  • Aim Sports
  • Allen
  • Blackhawk
  • BoreSnake
  • Breakthrough Clean
  • Burris
  • View all Brands
  • Gift Certificates
  • Login or Sign Up
×

    Main Menu

  • Shop by Brand
  • MSR Outlet
  • Contact Us
  • Blog
  • Shop By Category

  • AR Platform
    • Gas Systems
      • Bolt Carriers & Parts
      • Gas Blocks
      • Gas Tubes
    • Lower Receivers & Parts
      • Bolt Releases
      • Grips (Pistol & Forend)
      • Lower Parts Kits
      • Other Lower Parts
      • Safety Selectors
      • Takedown & Pivot Pins
      • Trigger Guards
      • Triggers
      • Magazine Releases
      • 80% Lowers & Jigs
    • Rails & Handguards
      • Forend grips
      • Handguards
      • Rail & Handguard Parts
    • Stocks & Stock Components
      • Buffer Tubes
      • Buffers & Springs
      • End-plates & Other Parts
      • Stocks
    • Upper Receivers & Parts
      • Charging Handles
      • Complete Upper Builds
      • Complete Upper Receivers
      • Ejection Port Covers
      • Forward Assists
      • Other Upper Receiver Parts
      • Stripped Upper Receivers
    • Barrels & Muzzle Devices
      • Other Barrel Parts
      • Rifle & AR Pistol Barrels
      • Muzzle Devices
    • CZ Scorpion
  • AK Platform
    • AK Barrels & Muzzle Devices
    • AK Grips
    • AK Handguards
    • AK Optics & Sights
    • AK Stocks
    • AK Support
    • AK Triggers
  • Shotgun
    • Mossberg 500
    • Remington 870
  • Bolt Action Rifle
    • Chassis
    • Remington 700
  • Handgun
    • Sig P320
      • Barrels
      • Compensators
      • Slides
      • Triggers
  • Ammunition
    • BB and Pellet
    • CA Certified Lead Free
    • Pistol Caliber
      • 10mm
      • 22 Short
      • 40 Cal.
      • 9mm
    • Rifle Caliber
      • 17 HMR
      • 17 Hornady Mach 2
      • 17 Hornet
      • 17 Remington FireBall
      • 17 Winchester Super Magnum
      • 204 Ruger
      • 218 Bee
      • 22 Hornet
      • 22 Long
      • 22 LR
      • 22 Nosler
      • 22 TCM
      • 22 Winchester Automatic
      • 22 WMR
      • 22 WRF
      • 22-250 Remington
      • 220 Swift
      • 222 Remington
      • 223 Remington
      • 224 Valkyrie
      • 30 Carbine
      • 300 Blackout
      • 308 Winchester
      • 5.56 X 45mm NATO
      • 6.5 Grendel
      • 7.62 x 51mm NATO
    • Shotgun
      • 20 Gauge 2.75"
      • 20 Gauge 3"
      • 12 Gauge 1.75"
      • 10 Gauge
      • 12 Gauge 2.75"
      • 12 Gauge 3"
      • 12 Gauge 3.5"
      • 16 Gauge 2.75"
  • Optics & Sights
    • Back-up Sights
    • Binoculars
    • Magnified Optics
    • Magnifiers
    • Optics Mounts
    • Other Optics Parts
    • Pistol Sights
    • Red Dot Optics
    • Spotting Scopes
  • Lights & Lasers
    • Lasers
    • Lights
  • Care & Maintenance
    • Cleaning Tools & Kits
    • Cleaning Chemicals
  • Shooting Gear
    • Bipods, Tripods & Monopods
    • Eye & Ear Protection
    • First Aid
    • Sling & Sling Attachment Points
    • Tools
  • Magazines
    • Magazine Accessories
    • Pistol Magazines
      • CZ 2075 RAMI
      • Glock 19
      • Glock 21
      • Ruger MAX-9
    • Rifle Magazines
  • Lifestyle
    • Cases, Bags & Packs
    • Clothing
    • Furnature & Décor
    • Gifts & Novelties
    • Knives
    • Locks and Safes
    • Multi-Tools
  • Hunting
  • Duty Gear
    • Belts
    • Plate Carriers and Chest Rigs
    • Pouches
  • Concealed Carry
  • Restrictive State Compliance
  • Gift Cards
  • Best Sellers
  • MSR Outlet
    • Accessories
    • Barrels
    • Bolt Action
    • Gas Systems
    • Handguards
    • Lowers
    • Magazines
    • Optics
    • Stocks
    • Uppers
  • Shop By Brand

  • Real Avid
  • Phase 5
  • Magpul
  • Daniel Defense
  • EOTech
  • Aguila Ammunition
  • CMMG
  • Luth-AR
  • Bravo Company
  • Midwest Industries
  • Odin Works
  • Radian Weapons
  • LBE Unlimited
  • Rise Armament
  • SLR Rifleworks
  • SOG Knife & Tool
  • Hogue
  • Surefire
  • Cross Armory
  • FailZero
  • Wheeler
  • Howard Leight
  • North American Rescue
  • Radians
  • Tyrant Designs
  • Battle Arms Development
  • FAB Defense
  • GPS Tactical
  • Grey Ghost Gear
  • Hexmag
  • Sig Sauer
  • Spike's Tactical
  • Steiner
  • Armaspec
  • Ballistic Advantage
  • Geissele Automatics
  • Holosun Optics
  • Meprolight
  • Strike Industries
  • Accu-Tac
  • Aero Precision
  • Agency Arms
  • ALG Defense
  • Angstadt Arms
  • B5 Systems
  • Black Rain Ordnance
  • Fortis
  • Harris Engineering
  • Hera Arms
  • Indian Creek Designs
  • Seekins Precision
  • TriggerTech
  • Trijicon
  • VG6 Precision
  • Vltor Weapons Systems
  • Yankee Hill Machine
  • A.R.M.S. Inc.
  • Advanced Technology Incorporated (ATI)
  • Badger Ordnance
  • Bootleg
  • CMC Triggers
  • Griffin Armament
  • KNS Precision
  • LanTac USA
  • Leapers UTG
  • NightStrike
  • Plano
  • PMC Ammunition
  • Primary Weapons Systems
  • Adaptive Tactical
  • Amend2
  • Ammunition Storage Components
  • Apex Tactical Specialties
  • Blue Force Gear
  • Criterion Barrels
  • Elftmann Tactical
  • Glock
  • Hiperfire
  • Inforce
  • Juggernaut Tactical
  • Lancer
  • LWRC International
  • Mission First Tactical
  • MSR Arms
  • Nordic Components
  • Q
  • Radical Firearms
  • Sharps Bros.
  • Stern Defense
  • Streamlight
  • TekMat
  • Timney Triggers
  • Tipton
  • WMD
  • Aim Sports
  • Allen
  • Blackhawk
  • BoreSnake
  • Breakthrough Clean
  • Burris
  • View all Brands
  • Gift Certificates
  • Login or Sign Up
  • Home
  • AK Platform
  • AK Support
  • ALG Defense AK High Energy Main Spring
  • ALG Defense  AK High Energy Main Spring - MSR Arms
  • ALG Defense  AK High Energy Main Spring - MSR Arms

    ALG Defense AK High Energy Main Spring

    ALG Defense

    MSRP:
    Now: $9.50
    (You save )
    SKU:
    RS-ALG04-233
    UPC:
    817953021903

    Adding to cart… category.add_cart_announcement
    Add to Wish List
    • Create New Wish List
    • Facebook
    • Email
    • Print
    • Twitter
    • Pinterest
    • Overview

    Product Description

    ALG Defense AK High-Energy Main Spring — Heavy-Duty Recoil Spring for AK Platforms

    Give your AK build hardened, reliable cycling with the ALG Defense AK High-Energy Main Spring. Engineered for shooters who demand extra spring force—whether you run suppressed setups, short barrels, high-round training, or heavy buffers—this high-energy main spring delivers stronger return force, reduced spring-set, and consistent bolt carrier timing for dependable function under stress.

    Why it matters 

    Standard factory springs can lose tension after heavy use or struggle with altered gas dynamics from suppressors and SBR builds. The ALG High-Energy spring provides the extra push your bolt carrier needs to ensure reliable extraction, feeding, and ignition across a wider range of ammo and operating conditions.

    Key Features

    • High-energy design — increased spring rate for stronger bolt carrier return and improved timing.

    • Premium spring steel — heat treated for durability and long service life.

    • Corrosion-resistant finish — protects against rust and wear in field conditions.

    • Factory-pattern dimensions — direct, drop-in replacement for standard AK main springs.

    • Low spring-set — engineered to resist permanent deformation over high round counts.

    Benefits

    • Improved reliability with suppressed, short-barrel, and high-pressure rounds.

    • More consistent extraction and feeding, reducing malfunctions in adverse conditions.

    • Longer service life versus worn or economy springs—less frequent replacement.

    • Simple swap — no gunsmithing required; installs like the OEM spring.

    Compatibility

    • Platforms: AK-47, AKM, AK-74 and most AK-pattern rifles using the standard factory main/recoil spring.

    • Works well with: aftermarket triggers (including ALG XAK), standard bolt carriers, and common AK receiver types.

    • Not for: non-standard or proprietary spring systems—confirm fitment for exotic builds.

    Installation Notes

    1. Clear the rifle and follow standard safety procedures.

    2. Remove the receiver cover and existing recoil assembly per your manual.

    3. Install the ALG High-Energy main spring, ensuring proper seating and orientation.

    4. Reassemble and perform a function check; test-fire with your typical ammo (and suppressor if applicable) to confirm timing and reliability.

    Short Specs (typical)

    • Material: Heat-treated spring steel

    • Finish: Corrosion-resistant coating

    • Fitment: Factory AK main spring dimensions (drop-in)

    • Application: Suppressed/SBR/heavy-use AK builds

    Upgrade to the ALG Defense AK High-Energy Main Spring for rock-solid bolt timing and improved reliability when your build demands more than stock spring performance. Add to cart at MSR Arms — tell us your AK variant if you want a quick fitment check or pairing recommendation.

    Product Videos

    Custom Field

    Product Reviews

    ×

    Recommended

    • ALG Defense AK Braided Main Spring - MSR Arms ALG Defense AK Braided Main Spring - MSR Arms
      Quick view Details

      ALG Defense

      |

      sku: RS-ALG04-232

      ALG Defense AK Braided Main Spring

      MSRP:
      Now: $9.00
      Add to Cart
    • ALG Defense AK Recoil Spring - MSR Arms ALG Defense AK Recoil Spring - MSR Arms
      Quick view Details

      ALG Defense

      |

      sku: RS-ALG04-231

      ALG Defense AK Recoil Spring

      MSRP:
      Now: $12.00
      Add to Cart
    • ALG Defense AK Trigger Ultimate with Lightning Bow - MSR Arms ALG Defense AK Trigger Ultimate with Lightning Bow - MSR Arms
      Quick view Details

      ALG Defense

      |

      sku: RS-ALG05-327

      ALG Defense AK Trigger Ultimate with Lightning Bow

      MSRP:
      Now: $147.00
      Add to Cart
    • FAB Defense Polymer AK-47 Quad Rail Handguard - MSR Arms FAB Defense Polymer AK-47 Quad Rail Handguard - MSR Arms FAB Defense Polymer AK-47 Quad Rail Handguard - MSR Arms FAB Defense Polymer AK-47 Quad Rail Handguard - MSR Arms
      Quick view Details

      FAB Defense

      |

      sku: RS-FABFX-AK47B

      FAB Defense Polymer AK-47 Quad Rail Handguard

      MSRP:
      Now: $64.00
      Out of stock
    • Daniel Defense Daniel Defense 30mm Optics Mount - MSR Arms Daniel Defense Daniel Defense 30mm Optics Mount - MSR Arms Daniel Defense Daniel Defense 30mm Optics Mount - MSR Arms Daniel Defense Daniel Defense 30mm Optics Mount - MSR Arms
      Quick view Details

      Daniel Defense

      |

      sku: RS-DD03-047-07146

      Daniel Defense Daniel Defense 30mm Optics Mount

      MSRP:
      Now: $161.00
      Add to Cart
    ×
    Join Our Mailing List for special offers!
    Contact Us
    Tennessee Distribution Center
    303 Holly Circle, #3910
    Clarksville, TN 37043 US

    Nevada Business Office - No Retail Services
    9107 West Russell Road, Suite 100
    Las Vegas, NV 89148-1233 US
    Accounts & Orders
    • Gift Certificates
    • Wishlist
    • Login or Sign Up
    • Shipping & Returns
    Quick Links
    • Shop by Brand
    • MSR Outlet
    • Contact Us
    • Blog
    Recent Blog Posts
    • Ninth Circuit Strikes Down California’s Ammunition Background Check Law in Major Second Amendment Ruling
    • Legislative Update: “One Big Beautiful Bill” Moves Forward with Major NFA Tax Victory
    • Legislative Update: Rhode Island Enacts “Assault Weapon” Sale Ban
    • How to Clean, Maintain, and Safely Store Your AR-15 or Similar Rifle
    Connect with Us:
    • © MSR Arms
    • |
    • Sitemap