The Gbrs Group Lerna Mount Kit for Aimpoint Acro is a purpose-built optic mount designed to solve a real problem on the modern fighting rifle or duty carbine: gear that gets in the way of your sight picture. Designed by professionals who live in helmets, comms headsets, night vision, and protective equipment, the Lerna positions your red dot at 2.91 inches above the bore—significantly higher than conventional mounts—so you can acquire targets faster without having to shift your head or cheek weld around earpieces, CBRN masks, or night vision housings.

That extra height does more than clear your gear. It lets you shoot with a more naturally athletic posture—head up, spine vertical, shoulders back—the same mechanics that keep your body armor plates squared to the threat and let you move decisively. The higher sight picture also accelerates your visual processing and keeps more of your environment in frame, which translates directly to faster target ID and better situational awareness in compressed-timeline scenarios. This isn't a marginal tweak; it's a fundamental shift in how you interface with your rifle when you're wearing everything you actually carry.

Built from 6061-T6 aluminum with a Type 3 hard-coat anodize finish, the mount is paired with 17-4 stainless steel clamp hardware finished in Melonite for durability and corrosion resistance. The Lerna comes with a T10 and 3/32-inch hex key for installation and a T25 bit for final adjustments, so you have what you need to mount it out of the box. At 4.8 ounces, it adds minimal weight while delivering the kind of ergonomic advantage that compounds over a long day of work.