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Rick T. asked 2 years ago:
1 answer
HK MK23 Detachable Magazine Black
They're slightly different but the MK23 magazines generally work in whatever USP model with a bit of a gap due to the different floorplates. This prevents USP magazines from fitting the MK23 though. If you were just looking for 12rd USP magazines they seem to be cheaper than the MK23 option: https://www.budsgunshop.com/product_info.php/products_id/157351/hk+50248618+usp+black+detachable+with+extended+floor+plate+12rd+.45+acp+for+h%26k+usp+45
Trevor D.
2 years ago
