WELLS ALLOY CYLINDER HEAD NOZZLE UPGRADE

The WELLS M4A1 Alloy Nozzle & Cylinder Head Upgrade is one of the best performance upgrades you can make for your blaster.
 
The stock M4A1 cylinder head is known for having a major air leak due to the lack of O-rings, which reduces power and consistency.
 
This upgrade replaces the stock parts with a precision-engineered alloy cylinder head and nozzle, featuring proper O-ring sealing for a tighter air seal, improved compression, and a significant boost in reliability and FPS consistency.
 
Built from durable alloy materials, it’s designed to withstand heavy use while delivering smoother, more efficient performance — a must-have for serious WELLS M4A1 owners.