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Newly Arrived

Flyye Single Frag Grenade Pouch

$9.99 ADD TO CART

Flyye NEW MOLLE LT6094 Airsoft Vest

$109.99 ADD TO CART

BOLT BRSS SOPMOD CQB Airsoft Rifle Black

$369.99 ADD TO CART
 

Upgrades AEG Internal Upgrade Parts

High endurance, highly impact resistant parts to upgrade an airsoft electric gun or AEG to be as high performance as possible. Everything from pistons and O-rings to complete gear boxes and tappet plates.

Systema M140 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-ZA-06-08
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Systema Airsoft
Manufacturer Part No: ZA0608
Stock: Ships in 3 Weeks
 
Upgrades speed of Airsoft Electric Guns (AEG) to 425 - 450 fps.
Other upgrades required i.e. Piston, Gears, Motor, Cylinder, etc...
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
Any Internal upgrades will void warranty
For Basic Airsoft Gear Box Tutorial
Systema M140 Airsoft AEG Upgrade Spring
Price:$17.99  per EACH
QTY:   Add to cart Add to Wish List
 

Systema M130 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-ZA-06-05
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Systema Airsoft
Manufacturer Part No: ZA0605
Stock: Ships in 3 Weeks
 
Upgrades speed of Airsoft Electric Guns (AEG) to 400 -425 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 M130 Airsoft AEG Upgrade Spring
Price:$16.99  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 AEG Internal Upgrade Parts
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
 

Dogmale SP145 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-SP145
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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
 

Dogmale SP130 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-SP130-R
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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 SP120 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-SP120-Y
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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 SP110 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-SP110-G
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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
 

Modify M90 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-MOD-M90
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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
 

MODIFY M80 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-MOD-M80
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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 Airsoft M100 Rifle Spring

Item Code: AC-UPI-MOD-M100
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Modify Airsoft & Speed Triggers
Manufacturer Part No: MOD M100
Stock: Ships in 1 Week
 
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
 

*MadBull M4 Airsoft M110 Spring

Item Code: AC-UPI-MB-SP110
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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
 

*MadBull M4 Airsoft M100 Spring

Item Code: AC-UPI-MB-SP100
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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 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 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
 

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
 

ICS M140 AEG Gear Box Upgrade Spring 38

Item Code: AC-UPI-ICS-M140
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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 M130 AEG Gear Box Upgrade Spring 37

Item Code: AC-UPI-ICS-M130
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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 M120 AEG Gear Box Upgrade Spring 39

Item Code: AC-UPI-ICS-M120
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
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
 

DeepFire Spring Set AEG Gearbox VII-VIII

Item Code: AC-UPI-DF-CPS12
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
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 VII-VIII
Price:$5.99  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 AEG Internal Upgrade Parts
Manufacturer: Deep Fire
Stock: Yes & Ships w/in 24Hrs*
 
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 M170 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS04
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
Stock: Yes & Ships w/in 24Hrs*
 

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 M150 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS03
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
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 M130 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS02
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
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 M120 Airsoft AEG Upgrade Spring

Item Code: AC-UPI-DF-CPS01
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
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
 

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
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
 

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
 

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: Yes & Ships w/in 24Hrs*
 
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
 

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
 

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
 
 

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