PDI STAINLESS 6.01 inner Barrel 129mm- 5.1 Capa/AAP01
The best barrels you can get for your Capa.
Nice bump in FPS as well as an increase in consistency and accuracy.
Make sure when you're using one of these you use high quality BBs
These barrels will stick out the end of your outer barrel (5.1/4.3 capa). This inner barrel sits flush with barrels with thread adapters on.