Zaffiri Precision IBS Complete Upper 9mm Luger Glock 43/43X RMSc Cut Cerakote Black - Gold Ported Barrel

The Zaffiri Precision IBS Complete Upper is a precision-machined aftermarket slide assembly built for the Glock 43 slimline platform. Cut from a single billet of 17-4 PH stainless steel and finished in Cerakote Black, this Complete Upper drops in place on Glock 43 and Glock 43X pistol frames using factory-spec internal components.

The slide features Zaffiri Precision's signature Integrated Blowhole System (IBS), with precision-machined gas-venting ports cut into the slide body to manage gases during the 9mm Luger firing cycle. The slide is optics-ready out of the box with a precision-cut RMSc pocket, ready to mount any RMSc-footprint micro red dot such as a Shield RMSc or Holosun 507K. Blacked-out co-witness-height iron sights ship installed to pair with a mounted red dot or run on their own for a low-profile defensive setup.

Paired with the slide is a matching Zaffiri Precision chunk-ported barrel, finished in Gold for a sharp two-tone look against the black slide. The barrel's porting complements the IBS ports on the slide assembly. Together, the Complete Upper installs as a single drop-in package onto a Glock 43 or Glock 43X lower, giving shooters a more durable, optic-ready slide and a ported carry barrel without modifying the OEM frame.