Spyder Xtra, M3 frame, Magnaport valve, Palmer Stab, etc.
Eliminates chops. Nylon. Recocks even when preventing a chop.
Flow lacks a little bit.
This bolt is amazing. It eliminates chops period. I have done some tests with it such as placing a ball halfway into the chamber and repeatedly shoot and still there was no chop. The only thing lacking is the flow. Sure, the flow is good.. but it's not great. The overall design is still in the beginning stages overall for anti-chop bolts all around and it's a great start. The anti-chop feature of this bolt works flawlessly, but once the flow becomes higher, there will be no weakness at all to it.
Excellent bolt. You won't have any chops, ever, at all, period.