OPF-VP9, ACRO iis only guaranteed to work with Aimpoint ACRO P1 and P2, and Steiner's MPS. We have not tested it with the cheap Chicom sights under different guises from various companies that purportedly use the ACRO footprint. We neither endorse, nor support their use on OPF-VP9, ACRO. For defense and duty, we also do not recommend P2 copies/clones.
Designed for HK VP9 and Aimpoint's ACRO P1 and P2, OPF-VP9, ACRO is precision machined from 4140 steel and black nitride coated.
VP9 Tactical's taller suppressor height sights provide lower 1/3 co-witness with OPF-VP9, ACRO and P1/P2, but the front tritium/dot is partially obscured at the bottom.
Steiner's MPS has a larger window size, the front tritium is fully visible through the MPS sight window.
Torque value for T20 M4 0.7mm x 8mm, plate to slide screws: 20 in lb.
Torque value for ACRO T10 screw is 27 in lb (max)
NOTE:
We will soon stop including the L keys with all OPF products, L keys will become optional, we strongly suggest a proper torque wrench to impart the correct torque value.
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