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Expert Answer
The Agency Arms 417 Glock 17/19/34 Gen3 Compensator will fit your PSA dagger with a threaded barrel. However, it is designed to work with most factory loaded ammunition but will yield better results with heavier charged ammunition. Tuning of your recoil spring may be required. If you are worried about having to modify your recoil spring, I would recommend using a single port compensator instead which would provide less recoil reduction but should be more reliable with most factory loaded ammunition.