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Airsoft Gun Internal Upgrade Parts

Gearbox, Hop Up Units, Inner Barrels, ETC!

Airsoft GI has worked with enough airsoft guns to know that what’s inside really counts. If your airsoft gun has a broken mechanism or has simply fallen behind the times, our internal upgrade parts will have you back in the game. We have airsoft gun internal parts for AEGs, spring sniper rifles and gas blowback pistols and rifles. Add aftermarket AEG cylinder heads to maximize compression or install a precision inner barrel for better accuracy. Replace a burned-out stock motor with a standard OEM motor or upgrade to a high torque model that can handle other internal upgrades.

Our gas airsoft internal upgrades include recoil springs that increase felt recoil, loading nozzles that improve durability and high flow valves to increase FPS velocity. You can upgrade your spring rifle as well with parts that give your shots more distance and more precision. We carry parts from all the leading airsoft parts manufacturers such as Action Army, Danger Werx, G&G, Modify, SHS, and Lonex – and we make some of our own internal airsoft parts. Full tech support comes with every purchase, so you can turn to us if you encounter troubles while you work.


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Lancer Tactical Ver. 3 Spring Guide with Bearings by SHS

Lancer Tactical Ver. 3 Spring Guide with Bearings by SHS

  • Steel Construction
  • Ball Bearings
  • Decreased Resistance
  • Increased Efficiency

$12.00

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Lancer Tactical Steel O-Type Steel Motor Pinion Gear by SHS

Lancer Tactical Steel O-Type Steel Motor Pinion Gear by SHS

  • O-Type
  • OEM Replacement / Upgrade
  • Steel Construction

$9.00

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Lancer Tactical Steel AEG Cylinder for 407-455mm Inner Barrel by SHS

Lancer Tactical Steel AEG Cylinder for 407-455mm Inner Barrel by SHS

  • Aluminum Construction
  • Increase Air Seal
  • Increased Performance

$14.00

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Lancer Tactical 7mm Oiless Bushings Set by SHS

Lancer Tactical 7mm Oiless Bushings Set by SHS

  • Steel Construction
  • Durable Quality
  • Oiless Design

$9.99

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Lancer Tactical Spring Set for Ver. 2 Gearbox by SHS

Lancer Tactical Spring Set for Ver. 2 Gearbox by SHS

  • Upgrade / OEM Replacement
  • Metal Construction
  • Includes: Spring Set

$8.00

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Lancer Tactical MK36 AEG Selector Plate by SHS (Blue)

Lancer Tactical MK36 AEG Selector Plate by SHS (Blue)

  • OEM Replacement / Upgrade
  • Polymer Construction
  • Precise Fire Selection

$9.00

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Lancer Tactical Aluminum Ver. 3 Spring Guide by SHS (Red)

Lancer Tactical Aluminum Ver. 3 Spring Guide by SHS (Red)

  • Aluminum Construction
  • Ball Bearings
  • Decreased Resistance
  • Increased Efficiency

$15.00

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Lancer Tactical Lined AEG Cylinder for 451-590mm Inner Barrel by SHS

Lancer Tactical Lined AEG Cylinder for 451-590mm Inner Barrel by SHS

  • Aluminum Construction
  • Increase Air Seal
  • Increased Performance

$14.00

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Lancer Tactical 8mm Oiless Bushings Set by SHS

Lancer Tactical 8mm Oiless Bushings Set by SHS

  • Steel Construction
  • Durable Quality
  • Oiless Design

$9.99

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Lancer Tactical Spring Set for Ver. 3 Gearbox by SHS

Lancer Tactical Spring Set for Ver. 3 Gearbox by SHS

  • Upgrade / OEM Replacement
  • Metal Construction
  • Includes: Spring Set

$8.00

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Lancer Tactical Ver. 3 Selector Plate by SHS (Red)

Lancer Tactical Ver. 3 Selector Plate by SHS (Red)

  • OEM Replacement / Upgrade
  • Polymer Construction
  • Precise Fire Selection

$9.00

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Lancer Tactical Aluminum AEG Cylinder for 300-400mm Inner Barrel by SHS

Lancer Tactical Aluminum AEG Cylinder for 300-400mm Inner Barrel by SHS

  • Aluminum Construction
  • Increase Air Seal
  • Increased Performance

$14.00

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Lancer Tactical Spring Set for Ver. 7 Gearbox by SHS

Lancer Tactical Spring Set for Ver. 7 Gearbox by SHS

  • Upgrade / OEM Replacement
  • Metal Construction
  • Includes: Spring Set

$8.00

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Lancer Tactical Ver. 2 Spring Guide with Bearings by SHS (Blue)

Lancer Tactical Ver. 2 Spring Guide with Bearings by SHS (Blue)

  • Aluminum Construction
  • Ball Bearings
  • Decreased Resistance
  • Increased Efficiency

$15.00

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Lancer Tactical 60 Degree Hop Up Nub by SHS

Lancer Tactical 60 Degree Hop Up Nub by SHS

  • Rubber Construction
  • Increased Air Seal
  • Sets Hop Up Setting

$7.00

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Lancer Tactical 1mm Air Nozzle O-Ring by SHS (6 Pack)

Lancer Tactical 1mm Air Nozzle O-Ring by SHS (6 Pack)

  • Durable Quality
  • Rubber Construction
  • Fits Most Major Brands

$7.00

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Lancer Tactical Tempered M160 AEG Spring by SHS

Lancer Tactical Tempered M160 AEG Spring by SHS

  • Set Desired FPS
  • Durable Tension
  • High Strength Design

$11.00

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Lancer Tactical Safety Lever for M4/M16 AEG by SHS

Lancer Tactical Safety Lever for M4/M16 AEG by SHS

  • Plastic Construction
  • Package Includes: Safety Lever, Spring, Screw

$9.00

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Lancer Tactical CNC 14:1 Super High Speed Gear Set by SHS

Lancer Tactical CNC 14:1 Super High Speed Gear Set by SHS

  • Ratio: 14:1
  • Steel Construction
  • Heat Treated
  • Includes: Bevel, Spur, Sector

$32.00

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Lancer Tactical CNC 13:1 Super High Speed Gear Set by SHS

Lancer Tactical CNC 13:1 Super High Speed Gear Set by SHS

  • Ratio: 13:1
  • Steel Construction
  • Heat Treated
  • Includes: Bevel, Spur, Sector

$32.00

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Lancer Tactical M110 AEG Spring by SHS

Lancer Tactical M110 AEG Spring by SHS

  • Set Desired FPS
  • Durable Tension
  • High Strength Design

$9.00

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Lancer Tactical M150 AEG Spring by SHS

Lancer Tactical M150 AEG Spring by SHS

  • Set Desired FPS
  • Durable Tension
  • High Strength Design

$10.00

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Lancer Tactical Motor Shaft Guide

Lancer Tactical Motor Shaft Guide

  • Bearings Design
  • Metal Construction
  • Protects Motor

$5.50

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Lancer Tactical Aerail Aluminum AK Nozzle (Purple)

Lancer Tactical Aerail Aluminum AK Nozzle (Purple)

  • Aluminum Construction
  • Increased Air Seal
  • Double O-ring Design

$6.00

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Disclaimer:

All airsoft guns are required to have the tip (1/4 inch) of the barrel permanently colored in blaze orange. No person may openly display or expose any imitation firearm (replica firearm), in a public place. The term "public place" means an area open to the public or exposed to public view and includes streets, sidewalks, bridges, alleys, plazas, parks, driveways, parking lots, automobiles, whether moving or not, and buildings open to the general public, including those that serve food or drink, or provide entertainment, and the doorways and entrances to buildings or dwellings and the grounds enclosing them.

Any person who changes, alters, removes, or obliterates any coloration or markings that are required for by any applicable state or federal law or regulation, for any imitation firearm (replica firearm), or device in any way that makes the imitation firearm (replica firearm) or device look more like a firearm is guilty of violating the state or federal law.

By accessing the Site, you certify that you are older than 18 years of age or the age of majority where you live, whichever is older; that you are the owner of any credit card used to purchase on items on the Site; that you are familiar with all local laws in your area affecting your legal right to access airsoft products; that any products you buy are for your own private enjoyment and that you will NEVER share these products with a minor in ANY WAY.