


By far, one of the best hop up buckings I have used and tested to date and my current go-to choice for most installations. This bucking has all of the range of an R-Hop, but maintains tighter groups. Unlike an R-Hop, this is also significantly easier and less time consuming to install.
Similar to R-Hop's, this bucking excels with heavyweight BB's. For most carbines shooting at field velocity, I'd recommend using .28g on the lightest end, with .30 to .36g weight BB's being more ideal. For DMR and Sniper applications that use AEG cut inner barrels, I have tested this with up to .48g weight BB's with excellent results. As long as you have adjustment on your hopup arm, you can lift practically any weight without issue.
The Tru-Hop typically works best with a hard spacer, but is also compatible with softer spacers such as the orange ones that come with MAXX CNC chambers. For KWA's using the stock rotary chamber, the hard spacer works best. You may have to lightly sand the spacer with some fine grit sandpaper a few times on each side so it will drop smoothly into the hop up window cut without friction.
Tru-Hop Features:
Compatibility:
While the Tru-Hop™ bucking is engineered with broad compatibility in mind, certain inner barrel specifications must be met due to the bucking's internal contact patch shape. It is compatible with AEG, HPA, and GBB airsoft replicas utilizing AEG cut inner barrels with square cut windows. AEG barrels that use narrow, slanted hop up windows are not compatible with the Tru-Hop bucking. Please refer to the image below for the ideal barrel window dimensions.
I recommend applying a thin coat of silicone oil to both the barrel window and the Tru-Hop™ bucking exterior for smoother installation, taking care not to contaminate the bucking lips or contact patch. Additionally, there is a recommended 500 to 1000 round break-in period for optimal performance.
Specific References