Signature Packages
Spring Airsoft Guns
Gas Airsoft Guns
Electric Airsoft Rifles AEG
Airsoft Gas, Batteries, & Chargers
Airsoft BB & Targets
Airsoft Grenades, Launchers, Land Mines
Airsoft Gun Magazines
Apparel & Tactical Gear
Rifle Bags, Gun Cases, BackPacks, & Bags
Laser, Light, Scope, & Scope Mounts
Airsoft Upgrades
Paintball Guns & Accessory
Pellet Gun, Air gun, & Air Gun Accessory
Pre-Owned & Scrap Yard Airsoft Items Gun
Zombie & Halloween AirSoft Decorations

Newly Arrived

DyTac B5 Style SOPMOD Stock

$19.99 ADD TO CART

SRU SR-4S Custom Gas Pistol Slide Set

$261.99 ADD TO CART

Airsoft Morale Smiley Face PVC Patch

$4.99 ADD TO CART
 

Upgrade Spring & Spring Guide Rod

Upgrade springs for AEG gear boxes from M100 to M150 or 170% to 310% by Systema, Deep Fire, ICS, and Classic Army. Full range of FPS requirments for power or rate of fire. And important spring guide rods for more efficient compression. We also offer FREE* tune up & upgrade service for most Airsoft guns. Or visit our Airsoft University for more information, videos, and tutorials on how to upgrade and modify airsoft guns.

APS Airsoft AEG Polymer Spring Guide V2

Item Code: AC-UPI-AEG004
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: APS Airsoft
Manufacturer Part No: AEG013
Stock: Yes & Ships w/in 24Hrs*
 
APS Reinforced Polymer Spring Guide V2
- Polymer construction
- More Durable than Stock Spring Guide
- Features rear nut for Securing spring guide

The APS reinforced polymer spring guide is more durable and can handle more strain than stock factory installed polymer spring guides. This reinforced polymer spring guide also features a rear nut for securing the spring guide in place using an M4/ M16 stock screw.
APS Airsoft AEG Polymer Spring Guide V2
Price:$7.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical M120 Tune Up Spring

Item Code: AC-UPI-AS-M120
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Manufacturer Part No: AS-M120
Stock: Yes & Ships w/in 24Hrs*
 
AS Tactical M120 Tune Up Spring
- Upgrad AEG Velocity to 375 - 400 FPS
- Rust and Corosion Resistant Material
- Compatible With Most Standard AEG Gearboxes


AS Tactical M120 Tune Up Spring
Price:$9.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical M130 Tune Up Spring

Item Code: AC-UPI-AS-M130
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Manufacturer Part No: AS-M130
Stock: Ships in 6 Weeks
 
AS Tactical M130 Tune Up Spring
- Upgrad AEG Velocity to 425 - 450 FPS
- Rust and Corosion Resistant Material
- Compatible With Most Standard AEG Gearboxes


AS Tactical M130 Tune Up Spring
Price:$9.99  per EACH
QTY:   Add to cart Add to Wish List
 

CELCIUS CTW M4 Cylinder Unit 350FPS

Item Code: AC-UPI-CLU-350
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Celcius Airsoft
Stock: Yes & Ships w/in 24Hrs*
 
CELCIUS CTW M4A1 M4 Cylinder Unit 350 Upgrade
- Aircraft Grade Aluminum
- Muzzle Velocity with 0.20g BB : 320-350 FPS
- Spring type: M100
- Length 65mm & Outer Diameter 25.45mm
- Compatible with M4, M4 CQB, M16A2, M16A3 Training Weapon
CELCIUS CTW M4 Cylinder Unit 350FPS
Price:$94.99  per EACH
QTY:   Add to cart Add to Wish List
 

Deep Fire Bearing Metal Guide Rod VII

Item Code: AC-UPI-DF-CPO05
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
Stock: Yes & Ships w/in 24Hrs*
 
Deep Fire Metal Ball Bearing Spring Guide Rod for quicker and more efficient spring compression. Compatible with most Ver II AEG Gear Box (Tokyo Marui, ICS, Classic Army, etc.)
For Basic Airsoft Gear Box Tutorial
Deep Fire Bearing Metal Guide Rod VII
Price:$18.99  per EACH
QTY:   Add to cart Add to Wish List
 

Deep Fire Bearing Metal Guide Rod V.III

Item Code: AC-UPI-DF-CPO06
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire Upgrade Parts
Stock: Yes & Ships w/in 24Hrs*
 
Deep Fire Ball Bearing Spring Guide Rod for quicker and more efficient spring compression. Compatible with most Ver III AEG Gear Box (Tokyo Marui, ICS, Classic Army, etc.)
For Basic Airsoft Gear Box Tutorial
Deep Fire Bearing Metal Guide Rod V.III
Price:$18.99  per EACH
QTY:   Add to cart Add to Wish List
 

DeepFire M120 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS01
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Deep Fire Upgrade Parts
Stock: Yes & Ships w/in 24Hrs*
 

Deep Fire M120 Upgrade Spring
Upgrades speed of Airsoft Electric Guns to 360fps - 380 fps.
NO OTHER UPGRADES REQUIRED!
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
DeepFire M120 Airsoft AEG Upgrade Spring
Price:$11.99  per EACH
QTY:   Add to cart Add to Wish List
 

DeepFire M130 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS02
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Deep Fire Upgrade Parts
Stock: Yes & Ships w/in 24Hrs*
 

Deep Fire M130 Upgrade Spring
Requires additional upgrades: Aluminium Piston, High Torque Motor, Full Tune Up Kit, etc. May cause damage to gear box.
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
DeepFire M130 Airsoft AEG Upgrade Spring
Price:$12.99  per EACH
QTY:   Add to cart Add to Wish List
 

DeepFire M150 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS03
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Deep Fire Upgrade Parts
Stock: Yes & Ships w/in 24Hrs*
 

Deep Fire M150 Upgrade Spring
Requires additional upgrades: Aluminium Piston, High Torque Motor, Full Tune Up Kit, etc. May cause damage to gear box
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
DeepFire M150 Airsoft AEG Upgrade Spring
Price:$14.99  per EACH
QTY:   Add to cart Add to Wish List
 

DeepFire M170 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS04
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Deep Fire Upgrade Parts
Stock: Ships in 4 Weeks
 

Deep Fire M170 Upgrade Spring
Requires additional upgrades: Aluminium Piston, High Torque Motor, Full Tune Up Kit, etc. May cause damage to gear box
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
DeepFire M170 Airsoft AEG Upgrade Spring
Price:$16.99  per EACH
QTY:   Add to cart Add to Wish List
 

DeepFire M100 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS05
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Deep Fire Upgrade Parts
Stock: Ships in 4 Weeks
 
Deep Fire 100M/S Spring M100 Upgrade Spring
Upgrades speed of Airsoft Electric Guns to 320fps - 340 fps (100 M/S).
NO OTHER UPGRADES REQUIRED!
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
DeepFire M100 Airsoft AEG Upgrade Spring
Price:$11.99  per EACH
QTY:   Add to cart Add to Wish List
 

DeepFire Spring Set AEG Gearbox V2 V3

Item Code: AC-UPI-DF-CPS12
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Deep Fire Upgrade Parts
Stock: Yes & Ships w/in 24Hrs*
 
Deep Fire Spring Set for AEG Gear Box Ver II or Ver III
Complete spring set for any Version 2 or Version 3 Mech Box
DeepFire Spring Set AEG Gearbox V2 V3
Price:$5.99  per EACH
QTY:   Add to cart Add to Wish List
 

Hephestus KWA KRISS Recoil Power Kit

Item Code: AC-UPI-HE-KK001
Airsoft Gun Style: Exterior Airsoft Accessories
Manufacturer: KWA KSC
Manufacturer Part No: HE-KK-001
Stock: Yes & Ships w/in 24Hrs*
 
Hephestus KWA KRISS Recoil Power Kit

KWA's Kriss Vector has already got a bit of a kick to it but definitely not as much as the real steel version, that much is a given. This Recoil Power Kit will add more recoil to every burst and is a definitely must-have if you want your Kriss to feel like its real steel counterpart.
The Recoil Kit uses more gas per shot, but does not affect FPS.
Hephestus KWA KRISS Recoil Power Kit
Price:$49.99  per EACH
QTY:   Add to cart Add to Wish List
 

ICS M120 AEG Gear Box Upgrade Spring 39

Item Code: AC-UPI-ICS-M120
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: ICS (I Chih Shivan)
Stock: Yes & Ships w/in 24Hrs*
 
Upgrades speed of Airsoft Electric Guns (AEG) to 375 -400 fps (120 M/S).
NO OTHER UPGRADES REQUIRED!
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
ICS M120 AEG Gear Box Upgrade Spring 39
Price:$12.99  per EACH
QTY:   Add to cart Add to Wish List
 

ICS M130 AEG Gear Box Upgrade Spring 37

Item Code: AC-UPI-ICS-M130
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: ICS (I Chih Shivan)
Stock: Yes & Ships w/in 24Hrs*
 
Upgrades speed of Airsoft Electric Guns (AEG) to 375 -400 fps (120 M/S).
NO OTHER UPGRADES REQUIRED!
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
ICS M130 AEG Gear Box Upgrade Spring 37
Price:$12.99  per EACH
QTY:   Add to cart Add to Wish List
 

ICS M140 AEG Gear Box Upgrade Spring 38

Item Code: AC-UPI-ICS-M140
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: ICS (I Chih Shivan)
Stock: Yes & Ships w/in 24Hrs*
 
Upgrades speed of Airsoft Electric Guns (AEG) to 425 - 450 fps.\
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
Requires additional upgrades: Aluminium Piston! may also cause damage to gear box
For Basic Airsoft Gear Box Tutorial
ICS M140 AEG Gear Box Upgrade Spring 38
Price:$13.99  per EACH
QTY:   Add to cart Add to Wish List
 

ICS Ball Bearing Spring Guide Rod V2 43

Item Code: AC-UPI-ICS-MC43
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: ICS (I Chih Shivan)
Manufacturer Part No: MC-43
Stock: Yes & Ships w/in 24Hrs*
 
ICS Ball Bearing Spring Guide Rod for quicker and more efficient spring compression. Compatible with most Ver 2 AEG Gear Box(Tokyo Marui, ICS, Classic Army, etc.)
For Basic Airsoft Gear Box Tutorial
ICS Ball Bearing Spring Guide Rod V2 43
Price:$19.99  per EACH
QTY:   Add to cart Add to Wish List
 

King Arms Cylinder Set for PTW M4 M90

Item Code: AC-UPI-KA-PA-29
Airsoft Gun Style: Upgrades Airsoft Cylinder, Head, & Set
Manufacturer: King Arms Airsoft
Manufacturer Part No: KA-PA-29
Stock: Yes & Ships w/in 24Hrs*
 
King Arms Cylinder Set for PTW M4 M90

This M90 Cylinder Set is designed for Systema PTW M4. The shooting power of rifle can be increased to around 310 FPS after installation.
-Color: Black
-Material: POM, Stainless Steel, Aluminum
King Arms Cylinder Set for PTW M4 M90
Price:$79.99  per EACH
QTY:   Add to cart Add to Wish List
 

King Arms Cylinder Set for PTW M4 M130

Item Code: AC-UPI-KA-PA-31
Airsoft Gun Style: Upgrades Airsoft Cylinder, Head, & Set
Manufacturer: King Arms Airsoft
Manufacturer Part No: KA-PA-31
Stock: Yes & Ships w/in 24Hrs*
 
King Arms Cylinder Set for PTW M4 M130

This M130 Cylinder Set is designed for Systema PTW M4. The shooting power of rifle can be increased to around 420 FPS after installation.
Color: Blue
Material : POM, Stainless Steel, Aluminum
King Arms Cylinder Set for PTW M4 M130
Price:$79.99  per EACH
QTY:   Add to cart Add to Wish List
 

King Arms Cylinder Set for PTW M4 M150

Item Code: AC-UPI-KA-PA-32
Airsoft Gun Style: Upgrades Airsoft Cylinder, Head, & Set
Manufacturer: King Arms Airsoft
Manufacturer Part No: KA-PA-32
Stock: Yes & Ships w/in 24Hrs*
 
King Arms Cylinder Set for PTW M4 M150

This M150 Cylinder Set is designed for Systema PTW M4. The shooting power of rifle can be increased to around 500 FPS after installation.
- Color: Magenta
- Material: POM, Stainless Steel, Aluminum
King Arms Cylinder Set for PTW M4 M150
Price:$79.99  per EACH
QTY:   Add to cart Add to Wish List
 

WE Katana Adaptive Power Cylinder 110

Item Code: AC-UPI-KT-110-R
Airsoft Gun Style: Upgrades Airsoft Cylinder, Head, & Set
Manufacturer: WE Tech Industries
Stock: Yes & Ships w/in 24Hrs*
 
WE Katana Adaptive Power Cylinder 110
Specifications:
- Average velocity: 360 fps / 110 m/s
- For use in WE KATANA Series AEG rifles ONLY
WE Katana Adaptive Power Cylinder 110
Price:$59.99  per EACH
QTY:   Add to cart Add to Wish List
 

WE Katana Adaptive Power Cylinder 120

Item Code: AC-UPI-KT-12-RD
Airsoft Gun Style: Upgrades Airsoft Cylinder, Head, & Set
Manufacturer: WE Tech Industries
Stock: Yes & Ships w/in 24Hrs*
 
WE Katana Adaptive Power Cylinder 120
Specifications:
- Average velocity: 400 fps / 110 m/s
- For use in WE KATANA Series AEG rifles ONLY
WE Katana Adaptive Power Cylinder 120
Price:$59.99  per EACH
QTY:   Add to cart Add to Wish List
 

WE Katana Adaptive Power Cylinder 130

Item Code: AC-UPI-KT-13-GR
Airsoft Gun Style: Upgrades Airsoft Cylinder, Head, & Set
Manufacturer: WE Tech Industries
Stock: Ships in 6 Weeks
 
WE Katana Adaptive Power Cylinder 130
Specifications:
- Average velocity: 430 fps / 130 m/s
- For use in WE KATANA Series AEG rifles ONLY
WE Katana Adaptive Power Cylinder 130
Price:$59.99  per EACH
QTY:   Add to cart Add to Wish List
 

WE Katana Adaptive Power Cylinder 90

Item Code: AC-UPI-KT-90-BU
Airsoft Gun Style: Upgrades Airsoft Cylinder, Head, & Set
Manufacturer: WE Tech Industries
Stock: Yes & Ships w/in 24Hrs*
 
WE Katana Adaptive Power Cylinder 90
Specifications:
- Average velocity: 300 fps / 90 m/s
- For use in WE KATANA Series AEG rifles ONLY
WE Katana Adaptive Power Cylinder 90
Price:$59.99  per EACH
QTY:   Add to cart Add to Wish List
 

Lonex Gearbox Tune Up Spring

Item Code: AC-UPI-LX-GB-04
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Lonex Airsoft
Manufacturer Part No: GB-04
 
Lonex Gearbox Tune Up Spring
The tune-up spring uses progressive non-linear design to stable FPS and save battery, and uses high class steel to ensure the durability.
Lonex Gearbox Tune Up Spring
Price:$14.99  per EACH
 
 

MadBull M4 Spring Guide Bearing - V2

Item Code: AC-UPI-MB-SG-V2
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull Airsoft
Manufacturer Part No: MB SG V2 (ULSG-2)
Stock: Ships in 1 Week
 
Madbull Airsoft Ultimate Spring Guide with Bearing - V2
Specifications:
- Thinner guide shaft for easy, stress-fee spring compression
- One piece bearing top plate and guide shaft
- Loose bearings for maximum spring twisting
- Smooth anodized finish
- Machined lightweight CNC aluminum
- MB SG V2 (ULSG-2)
MadBull M4 Spring Guide Bearing - V2
Price:$15.00  per EACH
QTY:   Add to cart Add to Wish List
 

MadBull M4 Spring Guide Bearing - V3

Item Code: AC-UPI-MB-SG-V3
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull Airsoft
Manufacturer Part No: MB SG V3 (ULSG-3)
Stock: Yes & Ships w/in 24Hrs*
 
Madbull Ultimate Spring Guide Bearing - V3
Specifications:
- Thinner guide shaft for easy, stress-fee spring compression
- One piece bearing top plate and guide shaft
- Loose bearings for maximum spring twisting
- Smooth anodized finish
- Machined lightweight CNC aluminum
- MB SG V3 (ULSG-3)
MadBull M4 Spring Guide Bearing - V3
Price:$15.00  per EACH
QTY:   Add to cart Add to Wish List
 

*MadBull M4 Airsoft M100 Spring

Item Code: AC-UPI-MB-SP100
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Mad Bull Airsoft
Manufacturer Part No: MB SP100
Stock: Ships in 1 Week
 
MadBull Airsoft M100 Spring
Specifications:
- MadBull Airsoft M100 Spring
- MB SP100
*MadBull M4 Airsoft M100 Spring
Price:$15.00  per EACH
QTY:   Add to cart Add to Wish List
 

*MadBull M4 Airsoft M110 Spring

Item Code: AC-UPI-MB-SP110
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Mad Bull Airsoft
Manufacturer Part No: MB SP110
Stock: Ships in 1 Week
 
MadBull Airsoft M110 Spring
Specifications:
- MadBull Airsoft M110 Spring
- MB SP110
*MadBull M4 Airsoft M110 Spring
Price:$16.00  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY Airsoft M100 Rifle Spring

Item Code: AC-UPI-MOD-M100
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Modify Airsoft & Speed Triggers
Manufacturer Part No: MOD M100
Stock: Yes & Ships w/in 24Hrs*
 
Modify M100 Spring
Specifications:
- M100 Grade Spring for AEG [320 - 340 FPS]
*MODIFY Airsoft M100 Rifle Spring
Price:$16.99  per EACH
QTY:   Add to cart Add to Wish List
 

MODIFY M80 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-MOD-M80
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Modify Airsoft & Speed Triggers
Manufacturer Part No: MOD M80
Stock: Yes & Ships w/in 24Hrs*
 
Modify M80 Airsoft AEG Upgrade Spring
- Down or Upgrade Airsoft AEG's FPS to 270-280 Range
- Upgrade to Metal Bushings & Guide Rod Recommended
- Compatible with most AEG (Marui, ICS, Classic Army, etc.)
- Any Internal upgrades will void warranty
- For Basic Airsoft Gear Box Tutorial
MODIFY M80 Airsoft AEG Upgrade Spring
Price:$15.99  per EACH
QTY:   Add to cart Add to Wish List
 

Modify M90 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-MOD-M90
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Modify Airsoft & Speed Triggers
Manufacturer Part No: MOD M90
Stock: Yes & Ships w/in 24Hrs*
 
Modify M90 Airsoft AEG Upgrade Spring
- Down or Upgrade Airsoft AEG's FPS to 290-300 Range
- Upgrade to Metal Bushings & Guide Rod Recommended
- Compatible with most AEG (Marui, ICS, Classic Army, etc.)
- Any Internal upgrades will void warranty
- For Basic Airsoft Gear Box Tutorial
Modify M90 Airsoft AEG Upgrade Spring
Price:$15.99  per EACH
QTY:   Add to cart Add to Wish List
 

Dogmale SP110 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-SP110-G
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Guarder G&P & Element
Stock: Ships in 8 Weeks
 
Dogmale SP110 Airsoft AEG Upgrade Spring
- For AEG FPS upgrade to 350 to 380fps. Equivalent to M110 Spring. Recommended for use with metal bushings & spring guide.
Dogmale SP110 Airsoft AEG Upgrade Spring
Price:$6.99  per EACH
QTY:   Add to cart Add to Wish List
 

Dogmale SP120 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-SP120-Y
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Guarder G&P & Element
Stock: Yes & Ships w/in 24Hrs*
 
Dogmale SP120 Airsoft AEG Upgrade Spring
- For AEG FPS upgrade to 380 to 410fps. Equivalent to M120 Spring. Recommended for use with metal bushings, spring guide, reinforced piston and gears.
Dogmale SP120 Airsoft AEG Upgrade Spring
Price:$6.99  per EACH
QTY:   Add to cart Add to Wish List
 

Dogmale SP130 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-SP130-R
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Guarder G&P & Element
Stock: Yes & Ships w/in 24Hrs*
 
Dogmale SP130 Airsoft AEG Upgrade Spring
- For AEG FPS upgrade to 450 to 470fps. Equivalent to M130 Spring. Recommended for use with metal bushings, spring guide, reinforced piston and gears, reinforced gearbox shell.
Dogmale SP130 Airsoft AEG Upgrade Spring
Price:$6.99  per EACH
QTY:   Add to cart Add to Wish List
 

Dogmale SP145 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-SP145
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Guarder G&P & Element
Stock: Yes & Ships w/in 24Hrs*
 
Dogmale SP145 Airsoft AEG Upgrade Spring
- For AEG FPS upgrade to 470 to 500fps. Equivalent to M140 Spring. Recommended for use with all upgraded and reinforced internal gearbox components.
Dogmale SP145 Airsoft AEG Upgrade Spring
Price:$6.99  per EACH
QTY:   Add to cart Add to Wish List
 

Systema PTW MP5 Cylinder Unit M150

Item Code: AC-UPI-SPTW-MAX
Airsoft Gun Style: MP5 Upgrade Parts Magazine Accessories
Manufacturer: Systema Airsoft
Manufacturer Part No: TW5-CU150
Stock: Yes & Ships w/in 24Hrs*
 
Systema Professional Training Weapons MP5 MAX Upgrade Cylinder Unit
- Cylinder Unit Includes Magnesium Piston and M150 Spring for 500- 520 FPS
- Swaps out with stock cylinder in seconds
Strongest Upgrade in Airsoft!
Systema PTW MP5 Cylinder Unit M150
Price:$184.99  per EACH
QTY:   Add to cart Add to Wish List
 

UTG L96 AWP Sniper Rifle Upgrade Kit

Item Code: AC-UPI-UTG-KT01
Airsoft Gun Style: Upgrades Airsoft Spring Sniper Rifle
Manufacturer: Leapers UTG
Manufacturer Part No: TL-S368KT01
Stock: Yes & Ships w/in 24Hrs*
 
UTG Shadow Ops Upgrade Kit for UTG L96 368 Sniper Rifle Variants.

Detail Information:
- Performance Upgrade Kit for UTG Sport S368 Shadow Ops Airsoft Sniper Rifle
- Complete with Upgrade Spring, Upgrade Metal Piston, and Upgrade Metal Spring Guide with Torque Absorbing Ball Bearing Set
- Easy Installation and More than 20% Power Increase
Please note: Any upgrade and/or modifications to airsoft rifles will void warranty
UTG L96 AWP Sniper Rifle Upgrade Kit
Price:$38.99  per EACH
QTY:   Add to cart Add to Wish List
 

Systema M120 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-ZA-06-03
Airsoft Gun Style: Upgrades Airsoft AEG Springs
Manufacturer: Systema Airsoft
Manufacturer Part No: ZA0603
Stock: Ships in 3 Weeks
 
Upgrades speed of Airsoft Electric Guns (AEG) to 375 -400 fps.
NO OTHER UPGRADES REQUIRED!
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
Systema M120 Airsoft AEG Upgrade Spring
Price:$14.99  per EACH
QTY:   Add to cart Add to Wish List
 

Celcius CTW Cylinder Main Spring

Item Code: UPI-CTW-017-400
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Celcius Airsoft
Manufacturer Part No: CLU-017-400
Stock: Yes & Ships w/in 24Hrs*
 
Celcius CTW Cylinder Main Spring
Features:
- Steel Construction
- Velocity Output: 420 to 430 FPS (0.2g BBs)
Celcius CTW Cylinder Main Spring
Price:$9.99  per EACH
QTY:   Add to cart Add to Wish List
 

Celcius Extreme AEG Spring CS400

Item Code: UPI-CTW-SP-0703
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Celcius Airsoft
Manufacturer Part No: CSP-07-03
Stock: Yes & Ships w/in 24Hrs*
 
Celcius Extreme AEG Spring CS400
Features:
- High Carbon Steel Construction
- Velocity Output: 420 to 430 FPS (0.2g BB)
Celcius Extreme AEG Spring CS400
Price:$19.99  per EACH
QTY:   Add to cart Add to Wish List
 

Celcius Extreme AEG Spring CS450

Item Code: UPI-CTW-SP-0704
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Celcius Airsoft
Manufacturer Part No: CSP-07-04
Stock: Yes & Ships w/in 24Hrs*
 
Celcius Extreme Spring CS450 for AEG
Features:
- High Carbon Steel Construction
- Velocity Output: 470 to 480 FPS (0.2g BB)
Celcius Extreme AEG Spring CS450
Price:$19.99  per EACH
QTY:   Add to cart Add to Wish List
 

Celcius Extreme AEG Spring CS500

Item Code: UPI-CTW-SP-0705
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Celcius Airsoft
Manufacturer Part No: CSP-07-05
Stock: Yes & Ships w/in 24Hrs*
 
Celcius Extreme Spring CS500 for AEG
Features:
- Steel Construction
- Compatible with M4, M4 CQB, M16A2, M16A3 Training Weapon
Celcius Extreme AEG Spring CS500
Price:$19.99  per EACH
QTY:   Add to cart Add to Wish List
 

Celcius Extreme AEG Spring CS550

Item Code: UPI-CTW-SP-0706
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Celcius Airsoft
Manufacturer Part No: CSP-07-06
Stock: Yes & Ships w/in 24Hrs*
 
Celcius Extreme Spring CS550 for AEG
Features:
- Steel Construction
- Compatible with M4, M4 CQB, M16A2, M16A3 Training Weapon
Celcius Extreme AEG Spring CS550
Price:$19.99  per EACH
QTY:   Add to cart Add to Wish List
 

Celcius Extreme AEG Spring CS600

Item Code: UPI-CTW-SP-0707
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: Celcius Airsoft
Manufacturer Part No: CSP-07-07
Stock: Yes & Ships w/in 24Hrs*
 
Celcius Extreme Spring CS600 for AEG
Features:
- Steel Construction
- Compatible with M4, M4 CQB, M16A2, M16A3 Training Weapon
Celcius Extreme AEG Spring CS600
Price:$19.99  per EACH
QTY:   Add to cart Add to Wish List
 

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