The Radian Weapons P365 X-Macro Backstrap (brand part number R0878) is a machined aluminum grip upgrade for the SIG Sauer P365, finished in gray. Radian designed the backstrap and its companion magazine well in tandem, so the two parts work together to deliver a rock-solid, enhanced grip on one of the most popular everyday-carry pistols on the market. It’s a purpose-built accessory for P365 X-Macro owners who want a more secure, repeatable hold without modifying the factory frame.

Key Specifications

• Machined from gray-finished aluminum for a durable backstrap upgrade.
• Built to fit the SIG Sauer P365 X-Macro.
• Measures approximately 5.15 inches in length to cover the full grip frame.
• Designed as a matched pair with Radian’s P365 X-Macro magazine well for a complete, enhanced grip.
• Weighs approximately 0.2 lb, keeping the grip module lightweight.

Frequently Asked Questions

What pistol does this backstrap fit? The SIG Sauer P365 X-Macro.

What finish is available on this backstrap? Gray aluminum.

Buy the Radian Weapons P365 X-Macro Backstrap, Gray Aluminum

Upgrade your X-Macro’s grip with a backstrap engineered to pair with Radian’s own magazine well. Order it from our Radian Weapons lineup, part of our handgun accessories and parts selection, at our Lubbock, Texas gun shop for fast, direct shipping.