Increase the capacity of your 5.7x28mm magazines by 10 rounds. This magazine extension kit is only designed to work with Gen 1 FN Five-seveN magazines.
Five-seven Magazine Extension Kit
CMMG
Gun Stuff/Magazines/Accessories
MSRP:
$26.00
$18.49
(You save
$7.51
)
CMMG-57AFD1E
852005002028
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