
Availability: In Stock
The Talley RMR400 is a direct-mount optics solution purpose-built for shooters running red dot sights on their Beretta A400 shotgun. If you're upgrading a turkey gun, competition shotgun, or tactical platform and want to skip the rail adapter hassle, this American-made mount delivers a streamlined, lightweight way to get an RMR-footprint optic on top of your receiver without extra bulk or complexity.
Talley machines the RMR400 from 6000-series aluminum and finishes it in black anodize, giving you a durable mount that'll outlast hard use in the field or at the range. The design is pared down intentionally—no unnecessary material, just the solid foundation your red dot needs. Precision CNC machining and tight manufacturing tolerances mean it'll fit your A400 the way it should: zero slop, dead-on alignment.
You get the mount, fasteners, and a wrench in the box, so you're ready to bolt it on and zero. No adapter rings, no picatinny rail needed. For Beretta A400 owners chasing better sight options or faster target acquisition, the RMR400 is a clean, no-frills answer.
| Material | 6000-series aluminum alloy |
| Finish | Black anodized |
| Optic Mount Type | RMR-footprint direct mount |
| Firearm Compatibility | Beretta A400 |
| Included Accessories | Mounting screws, wrench |
| Manufacturing | CNC machined, Made in USA |
Yes—the RMR400 is designed and machined specifically for the Beretta A400 platform with tight manufacturing tolerances to ensure a proper fit.
The RMR400 is built for optics with an RMR-footprint mounting pattern. Confirm your optic uses an RMR-compatible foot before ordering.
No. The RMR400 mounts directly to your A400 receiver, eliminating the need for a rail system or secondary adapter.
The RMR400 comes with mounting screws and a wrench for installation and adjustment.

SKU: 152744307 • Width: 1.8in • Height: 0.8in • Depth: 4.2in • Weight: 0.05oz





Availability: In Stock
The Talley RMR400 is a direct-mount optics solution purpose-built for shooters running red dot sights on their Beretta A400 shotgun. If you're upgrading a turkey gun, competition shotgun, or tactical platform and want to skip the rail adapter hassle, this American-made mount delivers a streamlined, lightweight way to get an RMR-footprint optic on top of your receiver without extra bulk or complexity.
Talley machines the RMR400 from 6000-series aluminum and finishes it in black anodize, giving you a durable mount that'll outlast hard use in the field or at the range. The design is pared down intentionally—no unnecessary material, just the solid foundation your red dot needs. Precision CNC machining and tight manufacturing tolerances mean it'll fit your A400 the way it should: zero slop, dead-on alignment.
You get the mount, fasteners, and a wrench in the box, so you're ready to bolt it on and zero. No adapter rings, no picatinny rail needed. For Beretta A400 owners chasing better sight options or faster target acquisition, the RMR400 is a clean, no-frills answer.
| Material | 6000-series aluminum alloy |
| Finish | Black anodized |
| Optic Mount Type | RMR-footprint direct mount |
| Firearm Compatibility | Beretta A400 |
| Included Accessories | Mounting screws, wrench |
| Manufacturing | CNC machined, Made in USA |
Yes—the RMR400 is designed and machined specifically for the Beretta A400 platform with tight manufacturing tolerances to ensure a proper fit.
The RMR400 is built for optics with an RMR-footprint mounting pattern. Confirm your optic uses an RMR-compatible foot before ordering.
No. The RMR400 mounts directly to your A400 receiver, eliminating the need for a rail system or secondary adapter.
The RMR400 comes with mounting screws and a wrench for installation and adjustment.
SKU: 152744307 • Width: 1.8in • Height: 0.8in • Depth: 4.2in • Weight: 0.05oz
