Adjustable rear sight for APX A1 all black with only antiglare checkering.
The use of optical fiber on both the front sight and the rear sight is recommended for tactical use, while for a sporty use the combination of fiber front sight and all black rear sight is typically preferred.
Warning: it will not be possible to use RDO plates (and therefore red dot) as long as an adjustable rear sight is used.
Compatible with APX A1
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