This is the Tyrant CNC Sig P365 X-Macro +3 magazine extension. 

Turn your 17-round factory magazine into a 20-round round one in seconds with this high-quality +3 magazine extension from Tyrant CNC. 

Utilizing an innovative “NoBak” retention spring technology, you can bump your capacity up with absolutely no tools required. Even better, thanks to the precision CNC machining process, you can count on the fit and finish to be perfect. 

Constructed from aerospace-grade aluminum and hard coat anodized, the last thing you’ll ever have to worry about is durability. Imagine improving your durability and capacity with such ease…why would you wait any longer?

Note: This magazine extension only fits the P365 X-Macro 17-round magazine. 

Add a mag extension or two to your cart and save on shipping!