Arex Rex Extended Magazine Release Button

Arex Rex Extended Magazine Release Button

This Rex extended release button works hand in hand with REX-502440 magazine release button. Combined together, they will work in all Rex Zero and Alpha models. The extension can be swapped to either side, but still functions ambidextrous. 

(Not compatible with Rex Delta)

  • MSRP: $34.99
  • SKU: REX-402469

Please see your local firearms retailer to purchase, or find it online at

  • California Consumers

    6pt.pngCalifornia Proposition 65 Warning

Parts Compatibility
Rex Zero 1 Standard
Rex Zero 1 Tactical
Rex Zero 1 Compact
Rex Zero 1 Tactical Compact
Rex Alpha
Rex Delta
    • SKU

California Proposition 65

WARNING: None of the firearms manufactured or imported by FIME Group are manufactured or imported with the intent to be sold in CA.  Nevertheless, be advised that some products sold on this website and/or manufactured by FIME Group can expose you to chemicals, including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to