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Newly Arrived

WE MP9 Big Bird Airsoft GBB Gas Gun BLUE

$99.99 ADD TO CART

ASG Dan Wesson 6" Airsoft CO2 Revolver

$125.99 ADD TO CART

WE Katana M4 RIS Airsoft Rifle AEG 300

$389.99 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 Area 1000 AEG 6mm Steel Bushings

Item Code: AC-UPI-ZS-A15
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Systema
Stock: Yes & Ships w/in 24Hrs*
 
These Area 1000 6mm bushings from Systema greatly reduce friction on the gears when they are turning, ultimately making the motor's job easier and the gun more efficient. Ball bearing bushings are a great upgrade from stock plastic bushings, but not recommended for guns with very high rate of fire or high velocity.
Systema Area 1000 AEG 6mm Steel Bushings
Price:$11.99  per EACH
QTY:   Add to cart Add to Wish List
 

Area 1000 Systema Tappet Plate Ver. 3

Item Code: AC-UPI-ZS-A13
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Systema
Stock: Yes & Ships w/in 24Hrs*
 
Systema Version 3 III Mechbox AEG Gear Box Tappet Plate
For most MP5 and M4 Airsoft AEG
Compatible with most AEG (Tokyo Marui, ICS, Classic Army, etc.)
Reinforced Polycarbonate Tappet Plate for more durable use
- Stronger than standard plastic tappet plate
Area 1000 Systema Tappet Plate Ver. 3
Price:$14.99  per EACH
QTY:   Add to cart Add to Wish List
 

Systema Oiless AEG 6mm Steel Bushings

Item Code: AC-UPI-ZS-0514
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Systema
Stock: Yes & Ships w/in 24Hrs*
 
Systema Metal Oiless Bushings for AEG
Oiless Bushing are Oiless Bushings functioning as Bearings
Compatible with Most AEG (Tokyo Marui, Classic Army, ICS, etc.)
Systema Oiless AEG 6mm Steel Bushings
Price:$14.99  per EACH
QTY:   Add to cart Add to Wish List
 

Systema Helical Gear Set Torque Up Ratio

Item Code: AC-UPI-ZS-0208
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Systema
Stock: Yes & Ships w/in 24Hrs*
 
Systema All Helical Gear Set Torque Up Ratio
Helical Gear Set for Increased Durability, Efficiency, and Reliability
Torque Up Gear Ratio for Higher Torque for Harder, Higher Pressure Spring
Will lower RPS or Rate of Fire
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
For Basic Airsoft Gear Box Guide
Systema Helical Gear Set Torque Up Ratio
Price:$69.99  per EACH
QTY:   Add to cart Add to Wish List
 

Systema Helical Gear Set Original Ratio

Item Code: AC-UPI-ZS-0207
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Systema
Stock: Yes & Ships w/in 24Hrs*
 
Systema All Helical Gear Set Original Ratio
Helical Gear Set for Increased Durability, Efficiency, and Reliability
Compatible with most AEG (Marui, ICS, Classic Army, etc.)
For Basic Airsoft Gearbox Guide
Systema Helical Gear Set Original Ratio
Price:$59.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY Airsoft Modular HighSpeed Gears

Item Code: AC-UPI-MOD-TQTM
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Yes & Ships w/in 24Hrs*
 
Modify Torque Up Modular Gear Set
Specifications
- Modify torque up modular gear set with tempered stainless bushes
- Anti-Reverse Latch
- Synthetic Lub for 7MM V2/V3 Mech Box. 21:6:1 (GB-09-13)
- For Tokyo Marui
*MODIFY Airsoft Modular HighSpeed Gears
Price:$69.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY Modular HighSpeed Gears 7mm

Item Code: AC-UPI-MOD-TQ7M
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Week
 
Modify Torque Up Modular Gears 7mm
Sepcifications:
- Manufacturer: Modify
- Gear Ratio: 22.2:1
- Design: 7mm gearbox
MOD GS TQ 7MM (09-13)
*MODIFY Modular HighSpeed Gears 7mm
Price:$69.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY Modular HighSpeed Gears 6mm

Item Code: AC-UPI-MOD-TQ6M
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Week
 
Modify Torque Up Modular Gears 6mm
Sepcifications:
- Manufacturer: Modify
- Gear Ratio: 21.6:1
- Design: 6mm gearbox
MOD GS TQ 6MM (09-12)
*MODIFY Modular HighSpeed Gears 6mm
Price:$69.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY Airsoft Selector Plate for AK

Item Code: AC-UPI-MOD-SP-A
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Week
 
Modify Selector Plate for AK
Sepcifications:
- 6mm - 8mm Bearing Compatible
- Manufacturer: Modify
- Gearbox: Version 3
- MOD SP AK
*MODIFY Airsoft Selector Plate for AK
Price:$15.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY HighSpeed Gear Modular Set

Item Code: AC-UPI-MOD-HSTM
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Week
 
Modify High Speed Modular Gear Set
Sepcifications:
- Manufactured by: ECHO1 USA
- Gear Ratio: 16:32:1 (
- Anit Reverse latch
- Synthetic Lub for V2/V3 Mech Box
- MOD GS HS TM (09-14)
*MODIFY HighSpeed Gear Modular Set
Price:$69.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY HighSpeed Gears Modular 7MM

Item Code: AC-UPI-MOD-HS7M
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Week
 
Modify High Speed Modular Gears 7MM
Sepcifications:
- Manufacturer: Modify
- Gear Ratio: 16.32:1
- Design: 7mm gearbox
- MOD GS HS 7MM (09-16)
*MODIFY HighSpeed Gears Modular 7MM
Price:$69.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY HighSpeed Gears Modular 6MM

Item Code: AC-UPI-MOD-HS6M
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Week
 
Modify High Speed Modular Gears 6MM
Sepcifications:
- Manufacturer: Modify
- Gear Ratio:16.32:1
- Design: 6mm gearbox
- MOD GS HS 6MM (09-15)
The Modify Modular Speed Up Gear Set for Ver.2/Ver.3 is a drop in gear set that is good to go right out of the bag.
*MODIFY HighSpeed Gears Modular 6MM
Price:$69.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY M4 6MM Bushing Set

Item Code: AC-UPI-MOD-BUSH
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Week
 
Modify 6MM Bushing Set
Sepcifications:
- Manufacturer: Modify
- 6mm diameter
- steel Bearings
- Smoother movement than bushings
- Set of 6
- MOD BS
*MODIFY M4 6MM Bushing Set
Price:$9.00  per EACH
QTY:   Add to cart Add to Wish List
 

MODIFY M4 7MM Steel Bushings Set of 6

Item Code: AC-UPI-MOD-BSH7
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Yes & Ships w/in 24Hrs*
 
Modify 7MM Steel Bushings Set
Sepcifications:
- Manufacturer: Modify
- 7mm diameter
- Set of 6
- MOD 7MM BUSHING
MODIFY M4 7MM Steel Bushings Set of 6
Price:$24.99  per EACH
QTY:   Add to cart Add to Wish List
 

*MODIFY M4 8mm Ceramic Bearing Set

Item Code: AC-UPI-MOD-B8MM
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Ships in 1 Week
 
Modify 8mm Ceramic Bearing Set
Modify Torque Up Modular Gears 8mm
Sepcifications:
- Manufacturer: Modify
- Rolling Element: Silicon Nitride Balls
- Bearing Ring: Steel
- 8mm type available
- MOD 8MM BEARING
*MODIFY M4 8mm Ceramic Bearing Set
Price:$36.99  per EACH
QTY:   Add to cart Add to Wish List
 

MODIFY M4 7MM Steel Bearings Set

Item Code: AC-UPI-MOD-B7MM
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Yes & Ships w/in 24Hrs*
 
Modify 7MM Steel Bearings Set
Sepcifications:
- Manufacturer: Modify
- 7mm diameter
- Steel Bearings
- Smoother movement than bushings
- Set of 6
- MOD 7MM BEARING
MODIFY M4 7MM Steel Bearings Set
Price:$24.99  per EACH
QTY:   Add to cart Add to Wish List
 

Modify Airsoft Stainless 8mm Bushings

Item Code: AC-UPI-MOD-0322
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Mad Bull & Bravo Airosft
Stock: Yes & Ships w/in 24Hrs*
 
Modify Airsoft Stainles 8mm Bushings
- Durable StainlessConstruction
- Convex surface design
- Ready to use out of the box
- Suitable for most 8mm metal gearbox AEGs

The Modify 8mm Replacement Stainless Bushings are durably constructed, and perfect for replacing worn or broken metal gearbox bushings. These bushings are a step up & perfect upgrade from standard stock polymer bushings, and can withstand more stress than basic plastic bushings.

Modify Airsoft Stainless 8mm Bushings
Price:$22.99  per EACH
QTY:   Add to cart Add to Wish List
 

ICS Airsoft AEG Gearbox Helical Gear Set

Item Code: AC-UPI-ICSMC108
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: ICS (I Chih Shivan) & VFC (Vega Force)
Stock: Yes & Ships w/in 24Hrs*
 
ICS Steel Helical Gear Set Original Ratio
Helical Gear Set for Increased Durability, Efficiency, and Reliability
- Steel Airsoft Gears is stronger and lasts longer than standard AEG gears
Compatible with most AEG (Tokyo Marui, ICS, Classic Army, etc.)
For Basic Airsoft Gearbox Guide
ICS Airsoft AEG Gearbox Helical Gear Set
Price:$44.99  per EACH
QTY:   Add to cart Add to Wish List
 

ICS AEG Rifle Mech Gear Box Sector Gear

Item Code: AC-UPI-ICS-MC09
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: ICS (I Chih Shivan) & VFC (Vega Force)
Stock: Yes & Ships w/in 24Hrs*
 
Harden Aluminum, heat treated, enhanced durability. Can pull M130 spring. Last gear, which connect to piston.
Fits on both ICS and Tokyo Marui.
For Basic Airsoft Gear Box Tutorial
ICS AEG Rifle Mech Gear Box Sector Gear
Price:$9.99  per EACH
QTY:   Add to cart Add to Wish List
 

ICS AEG Rifle Mech Gear Box Spur Gear

Item Code: AC-UPI-ICS-MC08
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: ICS (I Chih Shivan) & VFC (Vega Force)
Stock: Yes & Ships w/in 24Hrs*
 
Harden Aluminum, heat treated, enhanced durability. Can pull M130 spring. Second gear between bevel and sector gear.
Fits on both ICS and Tokyo Marui.
For Basic Airsoft Gear Box Tutorial
ICS AEG Rifle Mech Gear Box Spur Gear
Price:$9.99  per EACH
QTY:   Add to cart Add to Wish List
 

ICS AEG Rifle Mech Gear Box Bevel Gear

Item Code: AC-UPI-ICS-MC07
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: ICS (I Chih Shivan) & VFC (Vega Force)
Stock: Yes & Ships w/in 24Hrs*
 
Harden Aluminum, heat treated, enhanced durability. Can pull M130 spring. First gear, which connect to motor.
Fits on both ICS and Tokyo Marui.
For Basic Airsoft Gear Box Tutorial
ICS AEG Rifle Mech Gear Box Bevel Gear
Price:$9.99  per EACH
QTY:   Add to cart Add to Wish List
 

Echo1 MAX Helical HighSpeed Gears

Item Code: AC-UPI-E1-GS300
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Echo 1 Socom Gear Bravo Airsoft
Stock: Yes & Ships w/in 24Hrs*
 
Echo1 MAX Series Helical Triple Torque Gear Set 300%
- Ratio: 300% Helical
- Matched Piston & Gears
- Helical Teeth for Pulling Heavy Springs & Reduce Noise
- Include Light Weight Piston Body w/ 1 Metal Teeth

The ECHO 1 MAX Series Helical Double Torque Gear Set are the perfect internal upgrade for your high end airsoft gun, and the perfect option to repair your down AEG. They feature a 300% ratio, as well as helical teeth that are designed to help pull back heavy ...

Echo1 MAX Helical HighSpeed Gears
Price:$47.99  per EACH
QTY:   Add to cart Add to Wish List
 

Echo1 MAX HighSpeed Gear Set 16:1

Item Code: AC-UPI-E1-GS161
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Echo 1 Socom Gear Bravo Airsoft
Stock: Yes & Ships w/in 24Hrs*
 
Echo1 MAX Series HighSpeed Gear Set (16:1)
- Ratio: Flat Type 16:1
- Matched Piston & Gears
- Include Light Weight Piston Body w/ 1 Metal Teeth

The ECHO 1 MAX Series HighSpeed Gear Set (16:1) is a great option for your high-speed AEG build. This kit inlcudes the sector gear, bevel gear, and torque gear all matched together at a 16 to 1 ratio, along with an Echo1 MAX Series Light Weight Piston with one metal tooth to ensure that the piston and gears are matched perfectly.

Echo1 MAX HighSpeed Gear Set 16:1
Price:$47.99  per EACH
QTY:   Add to cart Add to Wish List
 

Deep Fire AEG Gearbox Shim Set Shimmings

Item Code: AC-UPI-DF-CPO20
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
Stock: Yes & Ships w/in 24Hrs*
 
Deep Fire Shim Set (5item x 6pcs)
Full set of shims for most standard AEG Gear Boxes. Compatible with Version 2 or 3 Gear Boxes, 6mm or 7 mm Gear boxes by most AEG manufacturers: Tokyo Marui, ICS, Classic Army, SRC, GB, etc.
Deep Fire AEG Gearbox Shim Set Shimmings
Price:$4.99  per EACH
QTY:   Add to cart Add to Wish List
 

Deep Fire AEG Gear Box 6mm Ball Bearings

Item Code: AC-UPI-DF-CPO17
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
Stock: Yes & Ships w/in 24Hrs*
 
Deep Fire 6mm Ball Bearing (6pcs/set)
Perfect upgrade to standard plastic bushings in any AEG Gear Box. Perfect option for high speed, lower FPS gear box set ups. Compatible with any 6 mm AEG Gear box: Tokyo Marui, Classic Army, ICS, VFC, SRC, GB, etc.
Deep Fire AEG Gear Box 6mm Ball Bearings
Price:$28.99  per EACH
QTY:   Add to cart Add to Wish List
 

Deep Fire 6mm Hard Oilless Bushing Set

Item Code: AC-UPI-DF-CPO16
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: Deep Fire
Stock: Yes & Ships w/in 24Hrs*
 
Deep Fire 6mm Hardened Oilless Bushing (6pcs/set)
Perfect upgrade for standard plastic bushings in any AEG Gear Box. This is hardened version. Compatible with any 6 mm AEG Gear box: Tokyo Marui, Classic Army, ICS, VFC, SRC, GB, etc.
Deep Fire 6mm Hard Oilless Bushing Set
Price:$9.99  per EACH
QTY:   Add to cart Add to Wish List
 

Classic Army AEG 6mm Steel Bushings

Item Code: AC-UPI-CA-P053M
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: CA (Classic Army)
Stock: Yes & Ships w/in 24Hrs*
 
These 6mm bushings from Classic Army greatly reduce friction on the gears when they are turning, ultimately making the motor's job easier and the gun more efficient. Ball bearing bushings are a great upgrade from stock plastic bushings, but not recommended for guns with very high rate of fire or high velocity.
Classic Army AEG 6mm Steel Bushings
Price:$16.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical 18:1 Torque AEG Gear Set 04

Item Code: AC-UPI-AS-GS04
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Stock: Ships in 4 Weeks
 
AS Tactical 18:1 Torque Up AEG Gear Set for 4mm Axle
Includes:
- Precision Machined Bevel Gear
- Precision Machined Spur Gear
- Precision Machined Sector Gear
- Heat Treated Steel Construction for Enhanced Durability
AS Tactical 18:1 Torque AEG Gear Set 04
Price:$39.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical 18:1 HigSpeed Gear Set 03

Item Code: AC-UPI-AS-GS03
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Stock: Yes & Ships w/in 24Hrs*
 
AS Tactical 18:1 Torque Up AEG Gear Set
Includes:
- Precision Machined Bevel Gear
- Precision Machined Spur Gear
- Precision Machined Sector Gear
- Matching Pinion Gear
- Metal Piston Tooth
- Precision Machined Anti-Reverse Latch w/ Spring
- Heat Treated Steel Construction for Enhanced Durability
AS Tactical 18:1 HigSpeed Gear Set 03
Price:$39.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical 9mm Ball Bearing Bushing 04

Item Code: AC-UPI-AS-BER04
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Stock: Yes & Ships w/in 24Hrs*
 
AS Tactical 9mm CNC Metal Ball Bearing Bushing Set for Oversized 4mm Axle
- CNC Precision Manufactured
- Oil Grooved Designed & Tampered for Smoother Operation
- Heat Resistant
- Reduced Wear & Tear Surface Finish
- Enhanced Durability & Rate of Fire
- Reduce Battery Drain & Increase Battery Life
- Heated Treated Harden Steel Material
AS Tactical 9mm Ball Bearing Bushing 04
Price:$12.99  per EACH
QTY:   Add to cart Add to Wish List
 

AS Tactical 9mm Ball Bearing Bushing 03

Item Code: AC-UPI-AS-BER03
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: AirSplat AS Custom Internal Upgrade Part
Stock: Yes & Ships w/in 24Hrs*
 
AS Tactical 9mm CNC Metal Ball Bearing Bushing Set for 3mm Axle
- CNC Precision Manufactured
- Oil Grooved Designed & Tampered for Smoother Operation
- Heat Resistant
- Reduced Wear & Tear Surface Finish
- Enhanced Durability & Rate of Fire
- Reduce Battery Drain & Increase Battery Life
- Heated Treated Harden Steel Material
AS Tactical 9mm Ball Bearing Bushing 03
Price:$12.99  per EACH
QTY:   Add to cart Add to Wish List
 

APS Airsoft Polymer 7mm BOM Bushings

Item Code: AC-UPI-AEG001
Airsoft Gun Style: Upgrades AEG Internal Upgrade Parts
Manufacturer: APS Airsoft Rifle AEG
Stock: Yes & Ships w/in 24Hrs*
 
APS Airsoft Polymer 7mm BOM Bushings
- Durable Polymer Construction
- Ready to use out of the box
- Suitable for most 7mm metal gearbox AEGs

The APS 7mm Replacement Polymer Bushings are durably constructed, and perfect for replacing worn or broken metal gearbox bushings. They will fit in any Version 2 or Version 3 AEG with a 7mm metal gearbox. These bushings are a step up & perfect upgrade from standard stock polymer bushings, and can withstand more stress than basic ...

APS Airsoft Polymer 7mm BOM Bushings
Price:$7.99  per EACH
QTY:   Add to cart Add to Wish List
 
 

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