AimTop brings new AEG HopUp buckings. Made in a various hardenest so they can 100% works on different FPS. They are made on different colours for easy identification:

• Blue (black in past):  "original TM type" made of  50° rubber.
• Green: made of 65° silica gel. Decided for M90 - M120 springs (250~390 FPS). One piece in the package.
• White: made of  70° silica gel. Decided for M120 až M150 (350~490 FPS). One piece in the package.
• Red: made of  80° silica gel. Decided for M150 až M190 (495~630 FPS). One piece in the package.

A new hop-up packing will allow more accurate hop-up adjustments. AIMTOP enhanced type packing is designed to match high power upgrades at 400fps+. High power upgrades require a harder hop-up packing since softer material may deform from the higher power. However if your gun shoots bellow 400fps, then stay with AimTop original (black one) since otherwise this hard type will not grip the BB properly on low power configurations. Especially recommended to use this hard type hop-up packing onto upgraded sniper rifle as well for improving semi mode shooting effectively.

Price of one piece!