Orders wit delivery to EL PROTECTOR till 2.8.
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Airsoft mechabox should be one of the first on the list of upgrades for your beloved gun if you want to increase its reliability and stable, glitch-free performance. In our offer you will find a wide range of quality mechaboxes for all primary models of airsoft guns.



: GATE
EON-CGB2-F18
Complete airsoft CNC gearbox EON V2 Titanium and TITAN II Bluetooth® EXPERT V2 by GATE with rear wiring. Drop-in upgrade set with an output of approx. 1.8 J (134 m/s). Designed for AEG M4 / AR15 rifles (MK18, M16, HK416). TITAN II Bluetooth® EXPERT unit, CNC EON aluminum gearbox shell, heavy-duty internal parts. Fully assembled and tuned directly by...
9572
RetroArms CNC gearbox for airsoft AEG rifles ASG CZ Scorpion EVO 3 is an essential upgrade part manufactured from aircraft-grade aluminum EN AW 7075 T651 with strength exceeding standard steel. It features a QSC quick spring change system and includes not only the shell but also the spring guide and screws. Designed for all ASG CZ Scorpion EVO models....
: Ultimate
ULTIM072
Reinforced V2 gearbox by ASG ULTIMATE in silver. Includes 8mm steel ball bearings, selector plate, and high-quality hex screws. Reinforced shell with chrome finish for maximum durability. Suitable for long-term use with ASG M125 springs. Unique serial number on each unit.
: EPES
E372-M249-I
EPeS Solution for Repairing Subpar Screws on your Gearbox! EPeS screws for M249 (M60 and PKM) Gearbox with a Imbus (Hexagonal) head will replace the original (often subpar) screws on your Gearbox, these screws will finally endure! No stress, be EPeS!
: GATE
EON-GB2-T
CNC Gearbox Shell EON V2 (8 mm) by GATE in Titanium finish. Made from aircraft-grade 7075 T6 aluminum with tensile strength of 570 MPa. Lifetime warranty for GATE ETU users. Inspection windows for AOE tuning, motor height, and pre-cocking check. Quick spring change (QSC) compatible with Specna Arms ESA2 spring guide. Designed for use with TITAN V2...
9396
CNC Gearbox V6 - P90 QSC (2025+ version) by RetroArms in black. Made from aircraft-grade aluminum EN AW 7075 T651 with strength exceeding steel. QSC quick spring change. Precision CNC machining for maximum compatibility and durability. Reinforced design for high-power springs. Compatible with Tokyo Marui V6 (P90) AEG standard. Screws and QSC spring...
SPARMS379
Reinforced ÆTHER™ V2 gearbox shell with 8mm bearings from Specna Arms in black. Premium base for PRIME™ M4 and MK18 rifles. Inspection window for AOE and body-centering capability. Designed for high stress. Patented reinforced shell. Compatible with M135+ springs without risk of cracking. 8mm J-Cage bearings.
SPARMS380
Complete ÆTHER™ V2 / M4 gearbox with HAL™ ETU unit from Specna Arms in black. Premium base for PRIME™ M4 and MK18 rifles. Extremely durable reinforced shell patented in the EU. CNC upgraded internal parts for maximum performance. HAL™ ETU unit for lightning trigger response and advanced firing modes. QSC ESA2 quick spring change.