Looking for extra firepower? Check out the FN 509 50-round drum, manufactured by Promag.

This drum magazine fits the following FN 509-series pistols:

• FN 509 full-size
• FN 509 Tactical full-size
• FN 509 Compact
• FN 509 Compact Tactical

It does not fit the following:

• FN 509 Mid-size
• FN 509 LS Edge
• FN 509 CC Edge

Features

• Largest capacity magazine for the FN 509 series pistols, with a 50-round capacity
• Durable and rugged Dupont Zytel-based polymer construction
• Precise, blued steel magazine tower
• Injection-molded, anti-tilt polymer follower
• Hand-crank loading mechanism
• Made in the USA