The Ultimate Drop in Barrel Assembly. Works on most AEGs including VFC, G&G, Krytac, King Arms, A&K and More!
The perfect upgrade for any gun, to increase accuracy, range and consistency of each shot fired. Out range anyone else on the field with incredible range and accuracy despite FPS.
The barrel is fabricated from Japanese SUS304, and polished down to a 20 micron surface finish, to reduce friction, increase FPS, and importantly accuracy.
3 varying depths for placement of O-rings to further stabilize your inner barrel.
Super Deep crowning allows for the smoothest release of the BB from your muzzle for maximum accuracy.
- Maxx Pro Hop-up
- Prometheus Inner Barrel
- Flat Hop Bucking and Nub
** Installation Tips/Notes:
1) Upon install, ensure that the hopup cannot bounce forwards or backwards when the upper and lower are assembled.
2) Ensure that the air nozzle bore is as close to center to the hopup chamber/barrel when inspected. Look down your barrel with a flashlight to observe the air nozzle's alignment. If off center, shims are likely needed to space the gearbox to be centered for maximum efficiency.
3) We use VFC 21.1mm-21.2mm air nozzles. Some other length nozzles may work, and or may require modifications to the tappet spring for flawless feeding. Using too long of an air nozzle, may result in poor feeding, while too short results in low FPS.
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Received the incorrect size first, MIR went above and beyond to make it right. Barrel assembly is great, really takes your AEG to the next level.