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Radian Weapons
The Radian Weapons R0878 is a gray aluminum backstrap designed to upgrade the ergonomics of your Sig Sauer P365 XMACRO. If you carry a P365 XMACRO for self-defense or everyday duty, this backstrap transforms how the gun feels in your hand—offering a higher palm swell, deeper grip channels, and improved hand contact that translates directly to better control and faster follow-up shots. Radian engineered this piece to work in concert with their matching magwell, creating a cohesive grip solution that doesn't compromise concealed carry comfort.
The design philosophy is straightforward: maximize surface area where it matters and eliminate sharp edges where they don't. Deep, aggressive channels on the backstrap lock your hand in a repeatable grip position, while the palm swell promotes a higher grip that many shooters prefer for recoil management and speed. The aluminum construction keeps weight minimal. Installation uses Radian's patent-pending screwless design—a spring-loaded dovetail interface that locks the backstrap in place without traditional fasteners, meaning no tools and no fiddling once you've got it seated.
The gray anodized finish is durable and low-profile, blending with most slide colors without adding visual bulk to your setup. This is a quality piece from a builder known for thoughtful, functional upgrades rather than gimmicks. If you've found the stock P365 XMACRO grip too small or the palm swell too pronounced, or if you simply want a sharper, more secure grip platform, the R0878 addresses those pain points with minimal fuss.
| Brand | Radian Weapons |
| Model | R0878 |
| Firearm Compatibility | Sig Sauer P365 XMACRO |
| Material | Aluminum |
| Finish | Gray Anodized |
Yes. The R0878 is engineered specifically for the P365 XMACRO platform and is compatible with all OEM XMACRO magazine base pads.
The R0878 uses a screwless design. It locks into place via a precision machined dovetail interface with a spring-loaded retention stud—no tools or disassembly required.
The backstrap is designed with concealed carry in mind. When paired with the matching magwell, the rear surface is heavily rounded to minimize printing and reduce hot spots against your body.
The R0878 features deeper, more aggressive grip channels and an enhanced palm swell compared to factory geometry. These changes promote a higher, more secure hand position and better surface contact, which many shooters find improves control and speed.
Radian Weapons
The Radian Weapons R0878 is a gray aluminum backstrap designed to upgrade the ergonomics of your Sig Sauer P365 XMACRO. If you carry a P365 XMACRO for self-defense or everyday duty, this backstrap transforms how the gun feels in your hand—offering a higher palm swell, deeper grip channels, and improved hand contact that translates directly to better control and faster follow-up shots. Radian engineered this piece to work in concert with their matching magwell, creating a cohesive grip solution that doesn't compromise concealed carry comfort.
The design philosophy is straightforward: maximize surface area where it matters and eliminate sharp edges where they don't. Deep, aggressive channels on the backstrap lock your hand in a repeatable grip position, while the palm swell promotes a higher grip that many shooters prefer for recoil management and speed. The aluminum construction keeps weight minimal. Installation uses Radian's patent-pending screwless design—a spring-loaded dovetail interface that locks the backstrap in place without traditional fasteners, meaning no tools and no fiddling once you've got it seated.
The gray anodized finish is durable and low-profile, blending with most slide colors without adding visual bulk to your setup. This is a quality piece from a builder known for thoughtful, functional upgrades rather than gimmicks. If you've found the stock P365 XMACRO grip too small or the palm swell too pronounced, or if you simply want a sharper, more secure grip platform, the R0878 addresses those pain points with minimal fuss.
| Brand | Radian Weapons |
| Model | R0878 |
| Firearm Compatibility | Sig Sauer P365 XMACRO |
| Material | Aluminum |
| Finish | Gray Anodized |
Yes. The R0878 is engineered specifically for the P365 XMACRO platform and is compatible with all OEM XMACRO magazine base pads.
The R0878 uses a screwless design. It locks into place via a precision machined dovetail interface with a spring-loaded retention stud—no tools or disassembly required.
The backstrap is designed with concealed carry in mind. When paired with the matching magwell, the rear surface is heavily rounded to minimize printing and reduce hot spots against your body.
The R0878 features deeper, more aggressive grip channels and an enhanced palm swell compared to factory geometry. These changes promote a higher, more secure hand position and better surface contact, which many shooters find improves control and speed.
