FN FN20-100356 Magazine Sleeve for FN 509M (9mm, 24rd) – 1-Pack
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FN FN20-100356 magazine sleeve for FN 509M 9mm 24-round magazine — listed as sleeve for 17 rd. magazine in source attribute; package quantity: 1. SKU FN20-100356.
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Description
Description
Product Overview
FN FN20-100356 is recorded as a magazine sleeve accessory for FN pistols; source attributes list “Sleeve For 17 rd. Magazine” and the existing full title indicates “MAG SLEEVE FN 509M 9MM 24RD.” Package quantity is 1. (Manufacturer: FN; SKU FN20-100356.)
Why This Product
The source facts identify this item as a magazine sleeve accessory and show both a 17-round sleeve description and a 24-round reference in the full title—these differing facts are decision-relevant for compatibility and order accuracy.
Key Verified Specifications
- Manufacturer: FN (product-270310:f002, product-270310:f006, product-270310:f007)
- Model / SKU: FN20-100356 (product-270310:f012)
- Product designation (source data): “Sleeve For 17 rd. Magazine” (attribute) and existing full title “MAG SLEEVE FN 509M 9MM 24RD” (product-270310:f009, product-270310:f001)
- Package quantity: 1 (product-270310:f008, product-270310:f010)
- Availability: In stock (product-270310:f013)
Appropriate Use Cases
- Ordering a single magazine sleeve accessory for FN-series magazines where you will verify sleeve-to-magazine compatibility before installation (source: product-270310:f009, product-270310:f001).
What Customers Should Know
- Source facts contain conflicting magazine-capacity references: an attribute states “Sleeve For 17 rd. Magazine” while the full title references “9MM 24RD.” Verify the exact magazine model and capacity this sleeve is intended to fit with the vendor before purchase to ensure compatibility (product-270310:f009, product-270310:f001).
- Package quantity is 1—confirm whether additional sleeves are available in bulk if required (product-270310:f008, product-270310:f010).
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling

