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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 CNC Aluminum Hop Up Unit for M4/M16 AEG by SHS (Red)

Lancer Tactical CNC Aluminum Hop Up Unit for M4/M16 AEG by SHS (Red)

  • OEM Replacement
  • Drop-In Assembly
  • Aluminum Construction
  • Includes: Hop Up Assembly

$36.00$32.40
Save: $3.60

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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$6.30
Save: $0.70

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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 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 2.5mm Piston Head O-Ring by SHS (6 Pack)

Lancer Tactical 2.5mm Piston Head O-Ring by SHS (6 Pack)

  • Durable Quality
  • Rubber Construction
  • Fits Most Major Brands

$7.00$6.30
Save: $0.70

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Lancer Tactical Version 2 Selector Plate with Copper Contacts by SHS

Lancer Tactical Version 2 Selector Plate with Copper Contacts by SHS

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

$9.00

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Lancer Tactical Aluminum MP5 Air Nozzle with O-Ring by SHS (Gold)

Lancer Tactical Aluminum MP5 Air Nozzle with O-Ring by SHS (Gold)

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

$6.00$5.40
Save: $0.60

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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 Steel Trigger Sear for VSR 10

Lancer Tactical Steel Trigger Sear for VSR 10

  • Steel Construction
  • Durable Design
  • Increased Trigger Lifespan

$5.00

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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$28.80
Save: $3.20

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Lancer Tactical Steel Piston Sear for VSR10

Lancer Tactical Steel Piston Sear for VSR10

  • Steel Construction
  • Designed for VSR10
  • Reinforced Design

$6.00

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Lancer Tactical AEG M90/M100 Spring

Lancer Tactical AEG M90/M100 Spring

  • Set Desired FPS
  • Durable Tension
  • High Strength Design

$9.00

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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$8.10
Save: $0.90

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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$5.40
Save: $0.60

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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$4.95
Save: $0.55

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Lancer Tactical Aerail Aluminum G36 Nozzle Long (Blue)

Lancer Tactical Aerail Aluminum G36 Nozzle Long (Blue)

  • Aluminum Construction
  • Increased Air Seal
  • Grooved Outlet Design

$6.00$5.40
Save: $0.60

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Lancer Tactical CNC Steel Ball Bearing Spring Guide for Ver. 2

Lancer Tactical CNC Steel Ball Bearing Spring Guide for Ver. 2

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

$12.00$10.80
Save: $1.20

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Lancer Tactical CNC 16:1 High Speed Gear Set by SHS

Lancer Tactical CNC 16:1 High Speed Gear Set by SHS

  • Ratio: 16:1
  • Steel Construction
  • Heat Treated
  • Includes: Bevel, Spur, Sector

$32.00$28.80
Save: $3.20

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Lancer Tactical CNC 18:1 High Standard Gear Set by SHS

Lancer Tactical CNC 18:1 High Standard Gear Set by SHS

  • Ratio: 18:1
  • Steel Construction
  • Heat Treated
  • Includes: Bevel, Spur, Sector

$32.00

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Lancer Tactical 9mm Ball Bearings by SHS

Lancer Tactical 9mm Ball Bearings by SHS

  • Metal Construction
  • Designed for 9mm Gearboxes
  • Increased Reliability Over Plastic Bushings
  • Includes: Six (6) 9mm Bearings

$12.99$11.69
Save: $1.30

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Lancer Tactical AEG Tappet Plate Ver. 7 by SHS (Blue)

Lancer Tactical AEG Tappet Plate Ver. 7 by SHS (Blue)

  • Polycarbonate Construction
  • Increased Durability
  • Lightweight

$4.50$4.05
Save: $0.45

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