The FN FNS Mag Sleeve in black fills in the gap between the extended magazine base plate and the pistol grip, giving you a solid one-piece grip feel for improved handling.

Key features

• Helps eliminate the uncomfortable gap with extended magazine setups
• Black finish for a clean, factory-matching look
• Creates a continuous, one-piece grip feel between the grip and extended magazine base plate

If you’re using extended FN FNS magazines and want a more unified grip feel, this mag sleeve is a straightforward upgrade.