Brownells194200245
Brownells Window Slide Assembly For Glock 43 With Holosun 407K Cut$178.11
Availability: In Stock
Current Stock: Out of stock
The Brownells Slide Assembly for Glock 43 with Holosun 407K cut is purpose-built for shooters ready to modernize their compact EDC or build a custom pistol from the ground up. Whether you're upgrading a factory G43 or assembling a complete gun on a compatible frame, this slide delivers the optics-ready platform and refined controls serious shooters demand. Machined from 416 stainless steel and finished in durable black Nitride, it's engineered to accept factory and aftermarket barrels and internal components, giving you the flexibility to dial in exactly the gun you want.
The integrated Holosun 407K mounting slot lets you install a modern reflex sight with minimal footprint—no clunky adapters or workarounds. If you're not running a red dot yet, the included optic cover plate keeps the slot protected and the pistol looking clean. Factory front and rear iron sights are pre-installed, so you can use them as primary sights, backups to your optic, or both. Choose between the traditional solid top or the distinctive window cutout design. The window not only showcases a custom or ported barrel; it also aids cooling and allows venting from ported barrels to help manage recoil impulse—all while keeping your finished pistol compatible with standard Glock 43 holsters.
You'll notice the refined ergonomics immediately: wide, shallow cocking serrations at the rear and a mirrored set forward give you confident purchase from any grip angle, whether racking the slide or performing a press-check. It's the kind of detail that makes a custom build feel intentional and purpose-driven. The slide ships with a recoil spring assembly, so you're closer to a working gun right out of the box. Note that a channel liner (sold separately) is required for installation and will need a dedicated tool to press fit into place.
| Material | 416 Stainless Steel Billet |
| Finish | Black Nitride |
| Optics Cut | Holosun 407K Footprint |
| Sights | Factory Front and Rear Iron Sights |
| Compatibility | Glock 43 and Compatible Frames |
| Top Style Options | Solid Top or Window Cutout |
| Includes | Recoil Spring Assembly, Optic Cover Plate |
| Additional Requirement | Channel Liner (sold separately) |
Yes. The Brownells slide is machined to Glock factory specifications and fits standard G43 factory frames as well as compatible aftermarket frames.
The slide is cut for the Holosun 407K footprint. Adapter plates are available separately if you want to mount RMR-pattern optics instead.
The slide comes with a recoil spring assembly, factory front and rear iron sights pre-installed, and a lightweight polymer optic cover plate. A channel liner is required for installation but sold separately.
Yes. The slide is machined to accept factory Glock 43 barrels as well as quality aftermarket barrels, giving you flexibility to customize your build.
SKU: 194200255 • Weight: 1oz
Availability: In Stock
Current Stock: Out of stock
The Brownells Slide Assembly for Glock 43 with Holosun 407K cut is purpose-built for shooters ready to modernize their compact EDC or build a custom pistol from the ground up. Whether you're upgrading a factory G43 or assembling a complete gun on a compatible frame, this slide delivers the optics-ready platform and refined controls serious shooters demand. Machined from 416 stainless steel and finished in durable black Nitride, it's engineered to accept factory and aftermarket barrels and internal components, giving you the flexibility to dial in exactly the gun you want.
The integrated Holosun 407K mounting slot lets you install a modern reflex sight with minimal footprint—no clunky adapters or workarounds. If you're not running a red dot yet, the included optic cover plate keeps the slot protected and the pistol looking clean. Factory front and rear iron sights are pre-installed, so you can use them as primary sights, backups to your optic, or both. Choose between the traditional solid top or the distinctive window cutout design. The window not only showcases a custom or ported barrel; it also aids cooling and allows venting from ported barrels to help manage recoil impulse—all while keeping your finished pistol compatible with standard Glock 43 holsters.
You'll notice the refined ergonomics immediately: wide, shallow cocking serrations at the rear and a mirrored set forward give you confident purchase from any grip angle, whether racking the slide or performing a press-check. It's the kind of detail that makes a custom build feel intentional and purpose-driven. The slide ships with a recoil spring assembly, so you're closer to a working gun right out of the box. Note that a channel liner (sold separately) is required for installation and will need a dedicated tool to press fit into place.
| Material | 416 Stainless Steel Billet |
| Finish | Black Nitride |
| Optics Cut | Holosun 407K Footprint |
| Sights | Factory Front and Rear Iron Sights |
| Compatibility | Glock 43 and Compatible Frames |
| Top Style Options | Solid Top or Window Cutout |
| Includes | Recoil Spring Assembly, Optic Cover Plate |
| Additional Requirement | Channel Liner (sold separately) |
Yes. The Brownells slide is machined to Glock factory specifications and fits standard G43 factory frames as well as compatible aftermarket frames.
The slide is cut for the Holosun 407K footprint. Adapter plates are available separately if you want to mount RMR-pattern optics instead.
The slide comes with a recoil spring assembly, factory front and rear iron sights pre-installed, and a lightweight polymer optic cover plate. A channel liner is required for installation but sold separately.
Yes. The slide is machined to accept factory Glock 43 barrels as well as quality aftermarket barrels, giving you flexibility to customize your build.
SKU: 194200255 • Weight: 1oz