PLDX2 Kit, AXCEL Scopes, 3/8-32 HO Blue SPL works perfect for any sight scope with a 3/8-32 light interface and is the best I've found for .010 blue fiber. If you are willing to make small modifications to your AVX scope pin ring to route the fiber, the Axcel Fiber Tube in the PLDX2 Kit and can be used in the AVX T-yoke to properly position and align the fiber. Note...Properly flaring the fiber end is critical.