FN America FN 509 LS Edge Factory 9mm 17-Round Magazine with Aluminum Basepad - 20-100478
Product Description
Stepping into high-speed competitive pistol tracking or active duty-level deployments with a high-performance handgun often highlights an immediate tactical bottleneck: magazine floorplate failure. Standard polymer baseplates save on production costs but run a distinct physical risk of fracturing, cracking, or binding when ejected directly onto hard concrete bay floors during high-speed administrative or emergency reloads. Furthermore, lightweight commercial magazines lack the necessary physical inertia to ensure clean, completely drop-free tracking when your support hand activates the frame catch under stress. The FN America FN 509 LS Edge™ 17-Round Factory 9mm Magazine completely eliminates these performance liabilities, fortifying a rugged steel feeding core with a specialized tactical aluminum basepad.
Precision-manufactured inside FN's elite domestic production facilities to the exact blueprints and metallurgical requirements of the standard FN 509 tactical platform, this premium magazine delivers uncompromised cycling continuity. The primary containment body is stamped from heavy-gauge structural steel and treated with a uniform, non-reflective proprietary black low-friction finish that protects the metal from moisture corrosion while enabling slick travel inside the magazine well. The defining mechanical advancement of the 20-100478 model is its integrated **flared graphite gray anodized aluminum basepad**. CNC-machined from solid aluminum billet, this heavy-duty basepad shields the mag core from severe drop impacts, adds essential downward mass for instantaneous drop-free extraction, and provides extra real estate to manually rip the magazine clear in the event of a complex double-feed malfunction.
In high-velocity competitive matches or dynamic multi-gun tracking sequences, this factory standard asset ensures your pistol tracks targets without missing a beat. The interior track is furnished with a high-tactility, injection-molded polymer follower, meticulously contoured to keep the 9mm cartridge stack at a precise parallel feeding angle. Driven upward by a custom-wound, heavy-duty steel compression wire spring that retains its vertical tension through thousands of intensive loading cycles, this magazine delivers clean stripping and positive slide-lock retention on the final round. Complete with rear-facing witness windows for immediate round-count verification, this premium factory engine protects the tracking health of your elite LS Edge platform.
*Armorer Bench Notes & Technical Maintenance Guidance: The FN 20-100478 magazine is explicitly cross-compatible across the entire 9mm FN 509 family—including the standard 509, 509 Tactical, 509 Compact (extends past grip), and 509 Midsize—but its weighted basepad profile is uniquely optimized to match the flared magwell funnel extension on the FN 509 LS Edge. When conducting routine preventative maintenance, depress the inner steel retaining plate button through the basepad port to slide the aluminum floorplate free for cleaning. Use a dry nylon cleaning brush to sweep out accumulated unburnt powder crust, trail dust, and pocket lint from the inner body tracks. Never spray wet aerosol lubricants or heavy synthetic gun oils inside the magazine body; wet oils act as a magnet for loose carbon fouling, turning debris into a sticky paste that will slow down the follower's upward tracking and induce premature failure-to-feed or sluggish cycling errors.
Key Features
- Flared Aluminum Basepad: Precision-machined from solid aluminum billet with a graphite gray anodized finish to ensure drop-free speed and protection from concrete impact damage.
- Low-Friction Steel Shell: Stamped from high-tensile structural steel and coated in a smooth black finish to ensure reliable tracking inside the grip frame.
- Factory OEM Integration: Built straight to authentic FN America engineering prints to guarantee absolute locking tolerances and crisp, repeatable final-round slide lockback.
- High-Visibility Follower: Outfitted with an optimized anti-tilt polymer follower that maintains a smooth vertical travel path to eliminate cartridge nose-diving.
- Rear Witness Indicators: Machined with clear rear indicator ports at standard round stations to let operators check current payload status with a quick glance.
Product Specifications
- Brand: FN America (Fabrique Nationale)
- Model Line: Factory OEM Companion Magazine Series
- MPN/SKU: 20-100478
- UPC: 845737012267
- Caliber Focus: 9mm Luger (9x19mm)
- Capacity Configuration: 17 Rounds (Flush-Fit for Full-Size Frames)
- Body Material: Stamped Heavy-Gauge Carbon Steel
- Body Finish: Glossless Low-Friction Black Coating
- Baseplate Type: Tactical Weighted Anodized Aluminum (Graphite Gray / Black Accents)
- Follower Profile: Injection-Molded Anti-Tilt Frictionless Polymer
- Spring Matrix: Heavy-Duty Heat-Treated Wire Compression Spring
- Primary Pistol Integration: FN 509 LS Edge
- Secondary Cross-Fitment: Standard FN 509, 509 Tactical, 509 Midsize Series
- Country of Manufacture: United States
