C&H Precision V4 Optic Mounting Plate – Beretta A300/A400/1301 to RMSc – BRTA-RMSC
The C&H Precision BRTA-RMSC (850071159356) is a professional-grade optics mounting solution designed to integrate micro red dot sights onto the Beretta A300, A400, and 1301 shotgun platforms. In 2026, as enclosed micro-optics like the Holosun EPS and EPS Carry dominate the shotgun market, this plate provides the ultra-low-profile interface required to maintain a natural cheek weld on a traditional shotgun stock. Machined from 6061-T6 aluminum and finished in a MIL-SPEC Type III hard anodized black coating, the BRTA-RMSC is built to withstand the heavy recoil of 12-gauge defensive and competition loads without shifting or losing zero.
This V4 series plate features C&H Precision's patented stainless steel T-Nut system. Unlike standard mounts that thread directly into aluminum—which can strip under high torque or extreme vibration—the T-Nuts provide 416 stainless steel threads for the mounting screws. This ensures maximum thread engagement and allows for easy hardware replacement if a screw is ever damaged. The RMSc footprint is specifically optimized for the Holosun 407K, 507K, EPS, and EPS Carry, as well as the Vortex Defender CCW and C&H’s own EDC series optics. For the Beretta 1301 Tactical or A300 Ultima Patrol owner, this plate is the definitive way to add a rugged, reliable red dot with "zero-failure" hardware.
Includes: (1) BRTA-RMSC Optic Plate, (3) M4 x 6mm Plate Mounting Screws, (3) 4-40 Optic Mounting Screws, and (3) Patented 416 Stainless Steel T-Nuts.
Key Features
- Broad Beretta Compatibility: Precision-fit for the receiver mounting holes of the Beretta 1301 (Tactical & Comp), A300 Ultima Patrol, and A400 series.
- RMSc / Holosun "K" Footprint: Designed for the industry’s most popular micro-enclosed emitters including the Holosun EPS, EPS Carry, 407K, and 507K.
- Patented T-Nut System: Replaceable stainless steel inserts provide superior thread strength and prevent the "stripping" common in direct-to-aluminum mounts.
- Low Profile Design: Keeps the optic close to the bore axis, often allowing for a more consistent cheek weld and better target acquisition speed.
- Rugged Construction: CNC machined from 6061-T6 aluminum with a durable hard-coat anodized finish for maximum corrosion resistance.
- Made in the USA: Proudly designed, manufactured, and tested in Coastal Georgia.
Product Specifications
- Brand: C&H Precision (CHPWS)
- Model: V4 Optic Mounting Plate
- Firearm Compatibility: Beretta 1301, A300, A400 Shotguns
- Optic Footprint: Shield RMSc / Holosun "K"
- Material: 6061-T6 Aluminum
- Finish: MIL-SPEC Type III Hard Anodized
- Hardware: 416 Stainless Steel T-Nuts & Mounting Screws
- Weight: 0.85 oz
- MPN: BRTA-RMSC
- UPC: 850071159356
