Airsoft HPA

If you're looking for the cheapest and easiest way to convert your M4/AR-15 AEG to HPA, you just found it! The Ares Drop-in HPA Engine Conversion Set for M4/AR-15 V2 Gearbox is a complete set with a V2 gearbox shell, HPA engine and EFCS module all pre-built, saving you hassle sourcing the right parts while saving you a few quid as a bonus!

This HPA Engine Gearbox is designed as a drop-in replacement for standard M4/AR-15 AEG Version 2 gearboxes but it may need alignment and tuning to fit certain receivers and HOP-up units. To power the pre-installed EFCS, an 11.1V LiPo battery with an XT30 battery connector is required and the air line fitting is US spec, meaning it will only accept US-type air lines and won't work with EU-type lines. For those as yet uninitiated future HPA players; this set does not include an air line, regulator or air bottle and you will need these to get into the HPA game!

This is the semi/full auto version designed for non-ambidextrous M4/AR-15 AEG receivers and is equipped with a standard M4/AR-15 curved trigger, ideal for almost any build style. As with any internal upgrade, this engine will require expertise to install and some level of familiarity with M4/AR-15 AEG internals. If you're struggling, you can contact us or your local Airsoft tech for advice.

If you plan to run your Hi-Capa GBB pistol with high pressure air, the Novritsch HPA SMG-5 Magazine Adapter for Hi-Capa GBB Pistols is essential. This magazine adapter allows your Hi-Capa GBB to feed from curved MP5/SMG-5 AEG mid-cap magazines and HPA from an external tank (not included), increasing capacity considerably and practically eliminating FPS fluctuation due to the "cooldown" effect. 

The adapter is pre-assembled, meaning you don't need to mess around putting it together or run the risk of doing it wrong and causing injury. Naturally, you'll need an HPA bottle, air line and regulator to use this adapter and the fitting is US Spec, meaning only US Spec air lines will fit. If you want to eliminate cooldown, improve rapid-fire performance and increase your mag capacity, the Novritsch HPA SMG-5 Magazine Adapter for Hi-Capa GBB Pistols is what you need!

If you're done with AEGs and want to revamp your build for HPA, the GATE PULSAR D Dual Solenoid HPA Engine is a fantastic option. Designed for Version 2 AEG gearboxes, the PULSAR D is designed to work with a GATE TITAN™ II V2 ETU (HPA Version), giving you unlimited advanced programming options along with the bob on consistency, top-tier accuracy, killer rate of fire and wealth of tuning opportunities HPA builds are known to provide.

The set includes the complete engine but will require a V2 gearbox shell, V2 trigger and TITAN™ II ETU HPA Version to complete the build. When compared to the original and more affordable PULSAR S, the PULSAR D offers a higher FPS range, universal compatibility with AEG nozzles, less precision required in the assembly of the build and impressively high air efficiency, using only 0.7 PSI per shot on average at 90 PSI with a 0.8L air tank.

The PULSAR D also has the edge in accuracy and versatility over the simpler single solenoid PULSAR S, being suitable for any build objective, from CQB monster to DMR dominator. As with all internal upgrades, we only recommend this engine to those who are confident working on AEG and HPA internals, but if you're ready for the PULSAR D, you're sure to be impressed!

If you're planning to run your EU series, AAP-01 or Lancer Tactical CTHULHU on HPA, the Lancer Tactical HPA Adapter for M4/AR-15 AEG Magazines; EU Series & AAP-01 will do the trick! This HPA adapter is designed for EU series GBB pistols and should also fit the Action Army AAP-01 and Lancer Tactical's radical CTHULHU pistol. Designed to allow standard M4/AR-15 AEG mags to be used along with a High Pressure Air (HPA) power source, you can kiss goodbye to the "cooldown" effect and limited magazine capacity with this adapter on your gat!

The set includes both an EU and US HPA connector but you will need an airline, HPA bottle and regulator to run this adapter. The advantages of using HPA when performance is concerned include the elimination of FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. If you're taking your playstyle in a speedy direction, this adapter will change your game!

If you're planning to run your EU series, AAP-01 or Lancer Tactical CTHULHU on HPA, the Lancer Tactical HPA Adapter for M4/AR-15 AEG Magazines; EU Series & AAP-01 will do the trick! This HPA adapter is designed for EU series GBB pistols and should also fit the Action Army AAP-01 and Lancer Tactical's radical CTHULHU pistol. Designed to allow standard M4/AR-15 AEG mags to be used along with a High Pressure Air (HPA) power source, you can kiss goodbye to the "cooldown" effect and limited magazine capacity with this adapter on your gat!

The set includes both an EU and US HPA connector but you will need an airline, HPA bottle and regulator to run this adapter. The advantages of using HPA when performance is concerned include the elimination of FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. If you're taking your playstyle in a speedy direction, this adapter will change your game!

If you want to run your SSP18 or EU-series GBB on HPA, the Novritsch HPA SMG-5 Magazine Adapter for EU Series GBB Pistols; Gen 2 is the easiest way to do it. This adapter is pre-built using a zinc alloy magazine body and fibre-reinforced nylon polymer adapter and is outfitted for US Spec HPA lines by default. This adapter is designed to feed from curved MP5/SMG-5 AEG mid-cap magazines and HPA from an external tank (not included), increasing capacity considerably and practically eliminating FPS fluctuation due to the "cooldown" effect. 

The adapter is pre-assembled, meaning you don't need to mess around putting it together or run the risk of doing it wrong and causing injury. Naturally, you'll need an HPA bottle, air line and regulator to use this adapter and the fitting is US Spec, meaning only US Spec air lines will fit. If you're running your SSP18 in the Novritsch Minimalist Carbine Kit or as a primary, the Novritsch HPA SMG-5 Magazine Adapter for EU Series GBB Pistols; Gen 2 will give you the rapid-fire performance and capacity you need to stay ahead!

If you plan to run your Tokyo Marui Hi-Capa GBB on HPA, the Army Armament HPA Adapter for M4/AR-15 AEG Magazines; GBB Hi-Capa will considerably improve your firepower!

This HPA adapter is designed for the Tokyo Marui Hi-Capa GBB series and may fit Hi-Capa clones based on the TM design, though we can't make any guarantees. It allows standard M4/AR-15 AEG mags to be used along with a High-Pressure Air (HPA) power source, so you can kiss goodbye to the "cooldown" effect and limited magazine capacity if you're rocking this on your Capa!

The set includes an EU and US HPA connector but you will need an airline, HPA bottle and regulator to run this adapter. The advantages of using HPA when performance is concerned include the elimination of FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. If you're taking your playstyle in a speedy direction, this adapter will take your gameplay to the next level!

If you're planning to run your Tokyo Marui Hi-Capa GBB on HPA, the Lancer Tactical HPA Adapter for M4/AR-15 AEG Magazines; TM Hi-Capa GBB will improve your firepower considerably!

This HPA adapter is designed for the Tokyo Marui Hi-Capa GBB series and may fit Hi-Capa clones based on the TM design, though we can't make any guarantees. Allowing standard M4/AR-15 AEG mags to be used along with a High Pressure Air (HPA) power source, you can kiss goodbye to the "cooldown" effect and limited magazine capacity if you're rocking this on your 'Capa!

The set includes both an EU and US HPA connector but you will need an airline, HPA bottle and regulator to run this adapter. The advantages of using HPA when performance is concerned include the elimination of FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. If you're taking your playstyle in a speedy direction, this adapter will change your game!

If you want a magazine for every season and you're running a CGS or TM ZET system GBBR, get one of these! The CYMA 30rnd Green Gas/HPA Gas Magazine for CGS/MWS GBBRs is compatible with both CYMA CGS and Tokyo Marui ZET system M4/AR-15 GBBRs and has a green gas fill valve and a HPA line attachment point on the rear of the STANAG style body.

The mag can be loaded through the feed lips at the top of the magazine, though this can be challenging with a standard speed loader without a GBBR adapter. As with the original TM and CYMA GBBR magazines, these mags include the bolt stop components which lock the bolt open at the end of a mag, and each mag holds 30 BBs. 

To use this magazine with HPA lines, instead of swapping the whole magazine when out of ammo, you can purchase separate quick-detach BB tubes. By pulling the tab rearwards on the bottom of the magazine you can remove the internal BB tube and then insert another one. This means that you can carry way more BBs without the hassle of large magazines occupying your rigs!

Whether you feel like using gas or HPA, this magazine has you covered for all occasions and is the perfect all-year-round gas magazine, just make sure to get some separate BB tubes if you plan on using HPA!

If you're planning to run your EU series, AAP-01 or Lancer Tactical CTHULHU on HPA, the Lancer Tactical HPA Adapter for M4/AR-15 AEG Magazines; EU Series & AAP-01 will do the trick! This HPA adapter is designed for EU series GBB pistols and should also fit the Action Army AAP-01 and Lancer Tactical's radical CTHULHU pistol. Designed to allow standard M4/AR-15 AEG mags to be used along with a High Pressure Air (HPA) power source, you can kiss goodbye to the "cooldown" effect and limited magazine capacity with this adapter on your gat!

The set includes both an EU and US HPA connector but you will need an airline, HPA bottle and regulator to run this adapter. The advantages of using HPA when performance is concerned include the elimination of FPS fluctuation due to the "cooldown" effect, resulting in improved shot-to-shot consistency and improved accuracy down range, especially under rapid fire. If you're taking your playstyle in a speedy direction, this adapter will change your game!