https://www.primaryarms.com/diamondhead-usa-diamond-integrated-sighting-system?trk_msg=LLVVOAMJO174T8D7VJPFN8C4Q0&trk_contact=BQA2J8BKAE3CTABNPB9T4TR968&trk_sid=18QS99HPE9F4CC2JUSQSHI2LC0&utm_source=listrak&utm_medium=email&utm_term=BANNER_1&utm_campaign=19_03_Ad#3_24HourSale
Aluminum ones not polymer, for 24 hrs.
Aluminum ones not polymer, for 24 hrs.