Product Code: S365-MGM

Smith Defense S365 - MODULAR GRIP

$299.99 - $369.98
Additional Configurations:
Current Stock:

Smith Defense, an American design and manufacturing company crafting premium firearm parts and accessories, proudly introduces its inaugural product: the S365 - a billet aluminum modular grip module for the SIG Sauer P365.  

The S365 includes interchangeable dust covers featuring a 1913 Picatinny accessory rail and are available in both standard 365 and 365L “long” configurations. 

Benefiting from its full billet metal construction, the base S365 adds approximately 4 ounces to your FCU, to help tame your pocket pistol. Smith Defense’s S365 has the ability to accept custom grip panels, enabling you to tailor its ergonomics for the most secure and personalized grip.

Designed for a drop-in fit, the S365 seamlessly integrates with your Sig P365 FCU, guaranteeing proper function right out of the box. 

Not a firearm. No milling required 

Patent Pending

To view instructions head over to


  • Configurations: Easily switch across a P365, P365X, P365XL, and the unique P365L setup. 
  • Compatibility: Compatible with your existing lights and lasers as well as your favorite slides and barrels 
  • Durability: Milled from a solid block of aluminum using CNC machining, the S365 provides outstanding strength and rigidity
  • Ergonomics: Refined design and textures provide a more secure and comfortable grip, boosting accuracy and control.
  • Ease: Engineered for a drop-in fit with Sig P365 FCU’s, ensuring reliable performance right out the box  



  • 1 S365 Grip
  • 1 standard dust cover
  • 1 set of grip panels 
  • Hardware required (screws+wrench)  

Additional Information:

  • Mag release sold separately or you can use your existing mag release.
  • Accepts all P365 FCU units. (Manual safety units require removal of safety.)
  • The 1913 Picatinny Rail is slightly larger than Sig's proprietary rail and fits all P365 light-bearing holsters

Please email, live chat with us, or call (508) 834-4223 for any questions about our products. 5D Tactical provides exemplary customer service and educational information. Quick response times and helpful support are our gold standard.


This item is restricted from shipping to California.