AIRSOFT GEARBOX & PARTS

The piston head is designed especially for standard and high-performance builds, helping achieve the best results and overcome limits. Thanks to the use of 10 vents, airflow significantly increases improving sealing. High-quality aircraft-grade aluminum...

The cylinder head is designed to prolong gearbox shell life and provide the perfect seal to achieve the best results. The shock-absorbing bumper noticeably increases gearbox life and limits the wear of the piston head. Thanks to high-quality...

The GATE EON Tappet Plate is a robust CNC POM constructed tappet plate designed to work with most version 2 gearboxes. This tappet plate features a fin shape designed for perfect cycle timing and there is an engraved cutting indication for those who...

The Prometheus EG Spring Guide is a steel-reinforced spring guide designed for the SIG AIR MPX electric airsoft SMG. This spring guide is a drop-in fit upgrade and it will allow for smoother operation of the gearbox and reduces the overall stress...

The?Prometheus Non Linear Springs are non-linear, irregular pitch springs that are designed to ease wear and tear on your gearboxes of your AEG. These springs brings the same performance as the previous versions but they are now color-coded for easier...

The Prometheus Non Linear Springs are non-linear, irregular pitch springs that are designed to ease wear and tear on your gearboxes of your AEG. These springs brings the same performance as the previous versions but they are now color-coded for...

The Prometheus Non Linear Springs are non-linear, irregular pitch springs that are designed to ease wear and tear on your gearboxes of your AEG. These springs brings the same performance as the previous versions but they are now color-coded for...

The Prometheus Non Linear Springs are non-linear, irregular pitch springs that are designed to ease wear and tear on your gearboxes of your AEG. These springs brings the same performance as the previous versions but they are now color-coded for...

The Prometheus Non Linear Springs are non-linear, irregular pitch springs that are designed to ease wear and tear on your gearboxes of your AEG. These springs brings the same performance as the previous versions but they are now color-coded for...

The Alpha Parts Stainless Steel Cylinder Spring Guide Washers are stainless steel constructed cylinder spring guide washer designed for the Systema PTW M4/AR15 AEGs.Check out more Airsoft AccessoriesCompatibility: Systema PTW M4/AR15...

The Alpha Parts Electronic Control Unit is a ECU set made for the Systema PTW M4/AR-15 series AEGs. This is designed to replace the stock ECU and is a drop-in fit.Check out more Airsoft AccessoriesCompatibility: Systema PTW M4/AR15...

The Dytac Stainless Steel Shims Set for barrel nuts for different platforms are made from high-quality stainless steel and has multi-size options in the same packageCheck out more Airsoft AccessoriesSizings: x5 25 x 30 x 0.5mmx5 25 x 30 x 0...

The Prometheus EG Hard Gear High Cycle is a reinforced gear set made of steel. Designed for the standard version 2 and version 3 gearboxes, this gear set has a gear ration of 13:1, giving your gun a boost in cycle rate, this is the perfect reinforced...

The Modify J-caged Hybrid Ceramic Ball Bearings for different version gearboxes are made from hybrid martials and are a drop-in fit for a variety of gearboxes. Check out more Airsoft AccessoriesCompatibility: Multi-Version...

The Modify Quantum Piston is highly robust and greatly increases the durability of your electric airsoft gun, especially when putting it through hard use.  The piston features 15 teeth and it is constructed with lightweight polycarbonate and steel...

The Modify Gearbox Shim Set for different version gearboxes are made from high-quality metal and are a drop-in fit for a variety of gearboxes. Check out more Airsoft AccessoriesCompatibility: Multi-Version...

The Prometheus EG Hard Gear Double Torque is a reinforced gear set made of steel. Designed for the Tokyo Marui Next Generation Recoil Shock system, this gear set has a gear ration of 20:1, allowing your gun to have extra torque and perform better than...

The Prometheus EG Hard Gear Reinforced is a reinforced gear set made of steel. Designed for the Tokyo Marui Next Generation Recoil Shock system, this gear set has a gear ration of 18:1, this is the perfect reinforced gear set to replace the stock gear...

The Prometheus EG Hard Gear High Speed is a reinforced gear set made of steel. Designed for the standard version 2 and version 3 gearboxes, this gear set has a gear ration of 16:1, giving your gun a speed boost, this is the perfect reinforced gear set to...

The Prometheus EG Hard Gear Reinforced is a reinforced gear set made of steel. Designed for the standard version 2 and version 3 gearboxes, this gear set has a gear ration of 18:1, this is the perfect reinforced gear set to replace the stock gear set...

The Silverback advanced cylinder head for their TAC41 series of airsoft snipers is a first-party upgrade part ideal for those that want to upgrade their rifles with a part guaranteed to work! This cylinder head is GBB spec. Check out...

The Silverback variable mass piston body is a first-party upgrade part designed to work with the variable mass piston.  This steel piston body is designed to work with Silverback's series of airsoft snipers and is substantially more robust than the...

The Silverback advanced piston head for their TAC41P series of airsoft snipers is a first-party upgrade part ideal for those that want to upgrade their rifles with a part guaranteed to work! This cylinder head is GBB spec. Check out...

The Silverback advanced piston head for their series of airsoft snipers is a first-party upgrade part ideal for those that want to upgrade their rifles with a part guaranteed to work! This cylinder head is AEG spec. Check out more Airsoft...

The RetroArms version 2 gearbox for your version 2 AEGs is a lightweight, highly robust upgrade part constructed from CNC 7075 aluminum.  This gearbox features 8mm bears and greatly increases the overall service life of your electric airsoft gun...

The Prometheus High Cycle Hard Piston is highly robust and greatly increases the durability of your Tokyo Marui High Cycle AEGs, especially when putting it through hard use as this piston is optimized by Prometheus for high rates of fire and improved...

The RetroArms version 2 gearbox for your VFC version 2 AEG is a lightweight, highly robust upgrade part constructed from CNC 7075 aluminum.  This gearbox features 8mm bears and greatly increases the overall service life of your electric airsoft gun...

The Prometheus EG hard selector plate for hard gears is designed to offer added durability for your AR15 / M4.  This plate works with hard gears and is more robust for prolonged use.  The installation process is straightforward and should be...

The RetroArms gearbox for the M249 and PKM airsoft guns is a lightweight, highly robust upgrade part constructed from CNC 7075 aluminum.  This gearbox features 8mm bears and greatly increases the overall service life of your electric airsoft gun...

The RetroArms version 3 gearbox for your airsoft gun is a lightweight, highly robust upgrade part constructed from CNC 7075 aluminum.  This gearbox features 8mm bears and greatly increases the overall service life of your electric airsoft gun.Check...

The RetroArms version 2 gearbox for your airsoft gun is a lightweight, highly robust upgrade part constructed from CNC 7075 aluminum.  This gearbox is ideal for your HPA build as it fits perfectly into airsoft guns that take version 2 style...

The RetroArms version 2 gearbox for your airsoft gun is a lightweight, highly robust upgrade part constructed from CNC 7075 aluminum.  This gearbox features 8mm bears and greatly increases the overall service life of your electric airsoft gun.Check...

The SHS aluminum cylinder head is a high-quality upgrade part designed to increase the stability and consistency of your M4 AEG.  Check out more Airsoft AccessoriesCompatibility: Standard M4 AEGs Includes: x1 SHS...

The SHS steel spring guide is a reinforced upgrade part designed to work with Version 2 gearboxes.  This part adds increased durability for AEGs compatible with these gearboxes.  Check out more Airsoft...

The SHS steel spring guide is a reinforced upgrade part designed to work with Version 3 gearboxes.  This part adds increased durability for AEGs compatible with these gearboxes.  Check out more Airsoft...

The SHS aluminum air seal nozzle for the AK AEG series is a high-quality upgrade part designed to increase performance and stability on a shot-to-shot basis!  Check out more Airsoft AccessoriesCompatibility: AK Series...

The SHS CNC aluminum piston features 15 steel teeth specially designed to work with the PTW series.  Check out more Airsoft AccessoriesCompatibility: M4 Series PTWs Includes:x1 SHS Aluminum High Speed Lightweight 15 Teeth...

The SHS high strength polycarbonate piston is a high-quality upgrade part designed to allow for harder use on your AEG.  The piston features 15 steel teeth and works with standard AEGs. Check out more Airsoft...

The SHS high strength polycarbonate piston is a lightweight high-quality upgrade part designed to allow for harder use on your AEG.  The piston features 14 steel teeth and works with standard AEGs.  Type 2 is a CLOSED cylinder, windowless...

The SHS high strength polycarbonate piston is a lightweight high-quality upgrade part designed to allow for harder use on your AEG.  The piston features 14 steel teeth and works with standard AEGs. Check out more Airsoft...