Skip to main content

DISCOUNTED SHIPPING on accessory orders $100+ > See Details

954.592.4448
SIGN IN or REGISTER

Compare

Search

FIREARMS
FIREARMS
SHOP ALL FIREARMS
BRAND
- FN
- IWI
- IMPERIAL ARMS CO
- GLOCK
- SIG SAUER
- SMITH & WESSON
TYPE
- PISTOLS
- RIFLES
- SHOTGUNS
- RECEIVERS
ACCESSORIES
ACCESSORIES
SHOP ALL ACCESSORIES
COMPATIBILITY
TYPE
SUPPRESSORS
MAGS
MERCH

Search

FIREARMS
FIREARMS
Back
BRAND
- FN
- IWI
- IMPERIAL ARMS CO
- GLOCK
- SIG SAUER
- SMITH & WESSON
TYPE
- PISTOLS
- RIFLES
- SHOTGUNS
- RECEIVERS
SHOP ALL FIREARMS
ACCESSORIES
ACCESSORIES
Back
COMPATIBILITY
TYPE
SHOP ALL ACCESSORIES
SUPPRESSORS
MAGS
MERCH

Questions? Call us (954) 592-4448

Home
Accessories
FN Accessories
509 Accessories

509 Accessories

Refine by

No filters applied

Browse by & Hide Filters Show Filters

Sort By:

Sale

Compare Choose Options

Apex Tactical Specialties

Extended Magazine Release - FN 509

MSRP:

Was:

Now: $75.00

!

account

sign in
Create an Account
Order Status
Wishlist

COMPANY

About Us
Terms & Conditions
Privacy Policy
Trade Show Archive

CONTACT

954.592.4448
National Firearm Sales Inc
936 Clint Moore Rd
Boca Raton, FL 33487

Connect With Us

Facebook
Instagram

STAY IN TOUCH

Email Address

FN, FNH, SCAR, FN 15, P90, PS90, Five-seveN, FN Five-seveN, M249S, FN 502, FN 503, FN 509 and FNX are registered trademarks of FN HERSTAL SA and/or its subsidiaries, and are ones of many trademarks owned by FN HERSTAL SA or FN America, LLC.

ArmoryOfKings.com and National Firearm Sales Inc are not affiliated with nor endorsed by FN HERSTAL SA or FN America, LLC

© 2026 National Firearm Sales Inc.