Gbrs Group194201427
GBRS LERNA MOUNT AMPNT DUTY RDS BLK$179.00
Availability: In Stock
Current Stock: Out of stock
The GBRS Lerna mount is a Duty RDS optic mount engineered to solve a real problem: getting your sight line higher for faster target identification without sacrificing ergonomics or tactical stance. Built by GBRS Group for shooters wearing body armor, communications gear, hearing protection, or running night vision, the Lerna positions your red dot at a 2.91-inch optic centerline—tall enough to clear obstructions but balanced enough to keep you in an athletic, heads-up posture. That matters. A vertical spine helps distribute recoil, keeps your plates facing the threat, and lets you maintain situational awareness without contorting your neck or dropping your head into a shooting slouch.
Constructed from 6061-T6 aluminum and finished in FDE (Flat Dark Earth), the Lerna is built lean at just 4.0 ounces—light enough that it won't throw off your rifle's handling or add weight to your duty setup. The mount is compatible with CompM5s and other Duty RDS optics, so if you're already running a modern compact red dot, the Lerna gives you a straightforward way to optimize your sight height without swapping glass.
Installation comes with purpose: the package includes a long-reach T10 key, long-reach 3/32" hex key, and ¼" drive T25 bit—the right tools to get the job done without hunting through your toolbox. Whether you're building a duty rifle, a patrol carbine, or a dedicated low-light platform, the Lerna is built for shooters who understand that inches matter when speed and clarity count.
| Brand | GBRS Group |
| Mount Type | Duty RDS Optic Mount |
| Optic Centerline Height | 2.91 inches |
| Material | 6061-T6 Aluminum |
| Finish | FDE (Flat Dark Earth) |
| Weight | 4.0 oz |
| Compatible Optics | CompM5s, Duty RDS optics |
| Included Tools | Long reach T10 key, long reach 3/32" hex key, ¼" drive T25 bit |
The Lerna is designed for CompM5s and Duty RDS optics. Verify compatibility with your specific red dot before purchase.
Yes. The 2.91-inch optic centerline is specifically designed to provide a clear sight picture when wearing body armor plates, communications headsets, hearing protection, gas masks, or running night vision systems. The elevated position keeps your line of sight clear of these common obstructions.
The mount ships with the installation tools you need: a long-reach T10 key, a long-reach 3/32" hex key, and a ¼" drive T25 bit. No need to hunt through your toolbox.
The Lerna mount weighs 4.0 ounces, keeping your rifle's weight and balance in check while raising your optic to an optimal height.
SKU: 194201415 • Width: 3.5in • Height: 3.37in • Depth: 6.5in • Weight: 12.5oz
Availability: In Stock
Current Stock: Out of stock
The GBRS Lerna mount is a Duty RDS optic mount engineered to solve a real problem: getting your sight line higher for faster target identification without sacrificing ergonomics or tactical stance. Built by GBRS Group for shooters wearing body armor, communications gear, hearing protection, or running night vision, the Lerna positions your red dot at a 2.91-inch optic centerline—tall enough to clear obstructions but balanced enough to keep you in an athletic, heads-up posture. That matters. A vertical spine helps distribute recoil, keeps your plates facing the threat, and lets you maintain situational awareness without contorting your neck or dropping your head into a shooting slouch.
Constructed from 6061-T6 aluminum and finished in FDE (Flat Dark Earth), the Lerna is built lean at just 4.0 ounces—light enough that it won't throw off your rifle's handling or add weight to your duty setup. The mount is compatible with CompM5s and other Duty RDS optics, so if you're already running a modern compact red dot, the Lerna gives you a straightforward way to optimize your sight height without swapping glass.
Installation comes with purpose: the package includes a long-reach T10 key, long-reach 3/32" hex key, and ¼" drive T25 bit—the right tools to get the job done without hunting through your toolbox. Whether you're building a duty rifle, a patrol carbine, or a dedicated low-light platform, the Lerna is built for shooters who understand that inches matter when speed and clarity count.
| Brand | GBRS Group |
| Mount Type | Duty RDS Optic Mount |
| Optic Centerline Height | 2.91 inches |
| Material | 6061-T6 Aluminum |
| Finish | FDE (Flat Dark Earth) |
| Weight | 4.0 oz |
| Compatible Optics | CompM5s, Duty RDS optics |
| Included Tools | Long reach T10 key, long reach 3/32" hex key, ¼" drive T25 bit |
The Lerna is designed for CompM5s and Duty RDS optics. Verify compatibility with your specific red dot before purchase.
Yes. The 2.91-inch optic centerline is specifically designed to provide a clear sight picture when wearing body armor plates, communications headsets, hearing protection, gas masks, or running night vision systems. The elevated position keeps your line of sight clear of these common obstructions.
The mount ships with the installation tools you need: a long-reach T10 key, a long-reach 3/32" hex key, and a ¼" drive T25 bit. No need to hunt through your toolbox.
The Lerna mount weighs 4.0 ounces, keeping your rifle's weight and balance in check while raising your optic to an optimal height.
SKU: 194201415 • Width: 3.5in • Height: 3.37in • Depth: 6.5in • Weight: 12.5oz