Hop Up Barrel Slot Bushing set Hoodie and follows the same specifications

and follows the same specifications as a Milspec buffer tube

color coded size reference card

not all manufacturers designed their rifle models to the exact same specifications

5 Kythera SA)

Hop Up Barrel Slot Bushing set Hoodie and follows the same specificationsHop Up Thing Barrel Slot Bushings Stop the wiggle. Lock the hop up in place. Most stock hop up units have loose fitment in the outer barrel, leaving room for the hop up to rotate or shift vertically. Rotation sends BBs left or right. Vertical movement throws off loading consistency and nozzle alignment. Either way, your accuracy pays the price. Barrel slot bushings eliminate that play entirely. They fill the gap between the barrel slots and the Hop Up