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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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Automatic Free Shipping On All Orders Over $179! Coupon code "2024" for 10% off!

$5.00

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Lancer Tactical Cylinder Upgrade for 451-590mm Inner Barrels

Lancer Tactical Cylinder Upgrade for 451-590mm Inner Barrels

  • Aluminum Construction
  • Increase Air Seal
  • Increased Performance

$11.00$9.90
Save: $1.10

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$14.00$12.60
Save: $1.40

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Lancer Tactical LT-20 Aluminum Piston Set

Lancer Tactical LT-20 Aluminum Piston Set

  • LT-20 Replacement Bolt System Parts
  • LT-20 CO2 Conversion Kit
  • Velocity: 450-500 Fps (W/ 0.20g Bbs)

$53.90$48.51
Save: $5.39

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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$12.60
Save: $1.40

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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$6.30
Save: $0.70

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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$12.60
Save: $1.40

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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$8.99
Save: $1.00

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Lancer Tactical AEG Tappet Plate Ver. 3 by SHS (Blue)

Lancer Tactical AEG Tappet Plate Ver. 3 by SHS (Blue)

  • Polycarbonate Construction
  • Increased Durability
  • Lightweight

$9.00

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Lancer Tactical Parts Kit for M4 Hop Up Unit by SHS

Lancer Tactical Parts Kit for M4 Hop Up Unit by SHS

  • OEM Replacement
  • Simple Installation
  • Includes: Hop Up Parts Kit

$9.99

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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 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 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 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$7.20
Save: $0.80

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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 Tempered M170 AEG Spring by SHS

Lancer Tactical Tempered M170 AEG Spring by SHS

  • Set Desired FPS
  • Durable Tension
  • High Strength Design

$13.00$11.70
Save: $1.30

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