▼ 19% below avg
CMMG 10rd Extention for FN 5.7 20rd Magazines
Lowest Price
$12.43
MSRP
$17.95
Savings
31% off
Verified In Stock at
14 Stores
Updated
Aug 26, 2026
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Verified availability, then price
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10 Round Extension
FN 5.7 Pistol Magazines
Increases Capacity
Specifications
Description
CMMG Part Black Mag Ext 10 Round Magazine Extension Fits FN 5.7 20Rd Magazine 57AFD1E MAGAZINE EXTENSION KIT a Adds 10 rounds of capacity to the 20 round FNHA(R) Five-seveN magazine
