Signature Packages
Spring Airsoft Guns
Gas Airsoft Guns
Electric Airsoft Rifles AEG
Airsoft Gun Magazines
Airsoft BB & Targets
Airsoft Gas, Batteries, & Chargers
Apparel & Tactical Gear
Airsoft Grenades, Launchers, Land Mines
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

Spartan Imports K9 Operator Harness

$44.99 ADD TO CART

BOLT BR47 BRSS Electric Recoil AEG Black

$409.99 ADD TO CART

Tactical Tailor Dump Demo Pouch

$49.99 ADD TO CART
 

SiegeTek Gearbox Internals

Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek gears are incredibly thick to provide higher bearing surface and improves structural durability. Siegetek gears are used in some of the most hardcore builds in airsoft and have been come to known for their quality and durability, install these gears in your build and they will not disappoint.

*SiegeTek Cyclone Revolution+ 10.44 Gear

Item Code: AC-UPI-ST-GSRPC
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: GSRPC
Stock: Ships in 2 Weeks
 
*SiegeTek Cyclone Revolution+ 10.44 Gear Set

Features
- Construction: Chromium Molybdenum steel
- Ratio: Revolution 10.44
- Gearbox compatibility: Version 2 and 3
- CNC machined


Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek ...
*SiegeTek Cyclone Revolution+ 10.44 Gear
Price:$124.99  per EACH
QTY:   Add to cart Add to Wish List
 

*SiegeTek Cyclone Revolution 14.09 Gear

Item Code: AC-UPI-ST-GSRC
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: GSRC
Stock: Ships in 2 Weeks
 
*SiegeTek Cyclone Revolution 14.09 Gear Set

Features
- Construction: Chromium Molybdenum steel
- Ratio: Revolution 14.09
- Gearbox compatibility: Version 2 and 3
- CNC machined


Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek ...
*SiegeTek Cyclone Revolution 14.09 Gear
Price:$124.99  per EACH
QTY:   Add to cart Add to Wish List
 

*SiegeTek Cyclone Revolution Gear Set

Item Code: AC-UPI-ST-GSR2C
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: GSR2C
Stock: Ships in 2 Weeks
 
*SiegeTek cyclone Revolution Gear Set Gen2

Features
- Construction: Chromium Molybdenum steel
- Ratio: Revolution 13.76
- Gearbox compatibility: Version 6 and 7
- CNC machined


Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek ...
*SiegeTek Cyclone Revolution Gear Set
Price:$124.99  per EACH
QTY:   Add to cart Add to Wish List
 

*SiegeTek Revolution Gear Set 13.76 V6 V

Item Code: AC-UPI-ST-GSR2
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: GSR2
Stock: Ships in 2 Weeks
 
*SiegeTek Revolution Gear Set 13.76 V6 V7

Features
- Construction: Chromium Molybdenum steel
- Ratio: Revolution 13.76
- Gearbox compatibility: Version 6 and 7
- CNC machined


Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek gears
*SiegeTek Revolution Gear Set 13.76 V6 V
Price:$119.99  per EACH
QTY:   Add to cart Add to Wish List
 

*SiegeTek Revolution 14.09 Gear Set V2 V

Item Code: AC-UPI-ST-GSR
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: GSR
Stock: Ships in 2 Weeks
 
*SiegeTek Revolution 14.09 Gear Set V2 V3

Features
- Construction: Chromium Molybdenum steel
- Ratio: Revolution 14.09
- Gearbox compatibility: Version 2 and 3
- CNC machined


Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek gears ...
*SiegeTek Revolution 14.09 Gear Set V2 V
Price:$119.99  per EACH
QTY:   Add to cart Add to Wish List
 

*SiegeTek Cyclone Balanced 20.15 Gears

Item Code: AC-UPI-ST-GSBC
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: GSBC
Stock: Ships in 2 Weeks
 
*SiegeTek Cyclone Balanced 20.15 Gear Set

Features
- Construction: Chromium Molybdenum steel
- Ratio: Revolution 20.15
- Gearbox compatibility: Version 2 and 3
- CNC machined


Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek gears
*SiegeTek Cyclone Balanced 20.15 Gears
Price:$124.99  per EACH
QTY:   Add to cart Add to Wish List
 

*SiegeTek Cyclone Balanced Gear Set V6 V

Item Code: AC-UPI-ST-GSB2C
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: GSB2C
Stock: Ships in 2 Weeks
 
*SiegeTek Cyclone Balanced Gear Set V6 V7

Features
- Construction: Chromium Molybdenum steel
- Ratio: Revolution 20.16
- Gearbox compatibility: Version 6 and 7
- CNC machined


Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek gears ...
*SiegeTek Cyclone Balanced Gear Set V6 V
Price:$124.99  per EACH
QTY:   Add to cart Add to Wish List
 

*SiegeTek Balanced 20.8 Gear Set V2 V3

Item Code: AC-UPI-ST-GSB
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: GSB
Stock: Ships in 2 Weeks
 
*SiegeTek Balanced 20.8 Gear Set V2 V3

Features
- Construction: Chromium Molybdenum steel
- Ratio: Revolution 20.8
- Gearbox compatibility: Version 2 and 3
- CNC machined


Siegetek gears are CNC Machined out of Chromium Molybdenum steel and are the strongest gears available for TM compatible AEGS. Each gear is precisely calculated and accurately produced which provides maximum efficiency and durability over traditionally produced gears. Siegetek gears are ...
*SiegeTek Balanced 20.8 Gear Set V2 V3
Price:$119.99  per EACH
QTY:   Add to cart Add to Wish List
 

Spartan Aluminum M4 Piston Head SPH

Item Code: AC-UPI-SPH
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: SPH
Stock: Ships in 2 Weeks
 
Spartan Aluminum M4 Piston Head SPH

Spartan Aluminum Piston Head For M4
Spartan Aluminum M4 Piston Head SPH
Price:$19.99  per EACH
QTY:   Add to cart Add to Wish List
 

Spartan Aluminum M4 Cylinder Set SCWHS

Item Code: AC-UPI-SCWHS
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: SCWHS
Stock: Ships in 2 Weeks
 
Spartan Aluminum M4 Cylinder Set SCWHS

Non Ported Cylinder for maximum pressure. Set includes Cylinder, Cylinder Head, and Piston Head.
Spartan Aluminum M4 Cylinder Set SCWHS
Price:$49.99  per EACH
QTY:   Add to cart Add to Wish List
 

Spartan Aluminum M4 Cylinder SCWH

Item Code: AC-UPI-SCWH
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: SCWH
Stock: Ships in 2 Weeks
 
Spartan Aluminum M4 Cylinder SCWH

Spartan Aluminum M4 Cylinder Without Hole. Item includes Cylinder Only.
Spartan Aluminum M4 Cylinder SCWH
Price:$14.99  per EACH
QTY:   Add to cart Add to Wish List
 

Spartan Aluminum M4 Cylinder Head SCH

Item Code: AC-UPI-SCH
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: SCH
Stock: Ships in 2 Weeks
 
Spartan Aluminum M4 Cylinder Head SCH

Spartan Aluminum Cylinder Head For M4.
Spartan Aluminum M4 Cylinder Head SCH
Price:$19.99  per EACH
QTY:   Add to cart Add to Wish List
 

Spartan Aluminum M4 Cylinder Set SC34HS

Item Code: AC-UPI-SC34HS
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: SC34HS
Stock: Yes & Ships w/in 24Hrs*
 
Spartan Aluminum M4 Cylinder Set SC34HS

Spartan Aluminum M4 Cylinder Set 3/4 Hole. Set includes Cylinder, Cylinder Head, and Piston Head.
Spartan Aluminum M4 Cylinder Set SC34HS
Price:$49.99  per EACH
QTY:   Add to cart Add to Wish List
 

Spartan Aluminum M4 Cylinder SC34H

Item Code: AC-UPI-SC34H
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: SC34H
Stock: Ships in 2 Weeks
 
Spartan Aluminum M4 Cylinder SC34H

Spartan Aluminum M4 Cylinder 3/4 Hole. Item includes Cylinder Only.
Spartan Aluminum M4 Cylinder SC34H
Price:$14.99  per EACH
QTY:   Add to cart Add to Wish List
 

Spartan Aluminum M4 Cylinder SC12H

Item Code: AC-UPI-SC12H
Airsoft Gun Style: M4 M16 Airsoft Gun Internal Upgrades
Manufacturer: SiegeTek Gearbox Internals
Manufacturer Part No: SC12H
Stock: Ships in 2 Weeks
 
Spartan Aluminum M4 Cylinder SC12H

Spartan Aluminum M4 Cylinder 1/2 Hole. Item includes Cylinder Only.
Spartan Aluminum M4 Cylinder SC12H
Price:$14.99  per EACH
QTY:   Add to cart Add to Wish List
 
 

Shopping Cart

$0.00

Find us on:

AirSplat YouTube AirSplat FaceBook AirSplat Airsoft Blog Airsoft Airsoft Instagram AirSplat Airsoft Twitter AirSplat Airsoft Forum AirSplat Google+ Pinterest Tumblr

Like us:

AirSplat 8 Guarantees Airsoft University Airsoft University Airsoft Safety Airsoft Shopping Buying Guide Airsoft Gun Maintenance Airsoft Gun Reviews
28,513,984
  Guns Shipped since 2001!

As Featured In:

AirSplat Awards

Reviews We love AirSplat!We have an airsoft team and we only buy from AirSplat! You guys are the best! We compare prices and shipping all the time and every time you are the best priced and fastest shipping.

-Joseph G from WY

More Testimonials