PLx Top Cap Reflex Mount – 30mm

The PLx Top Cap Reflex Mount offers a refined, high-strength solution for mounting a red dot at the 12 o’clock position on your Primary Arms 30mm PLx scope mount. Built to meet the demands of professional users, this low-profile accessory enables rapid transitions from magnified optics to a reflex sight — ideal for competitive shooting, hunting, and fast-transition scenarios.

Designed specifically for PLx 30mm 1.5” mounts, it positions your red dot at a precise 2.04” optical height, allowing for seamless target acquisition by simply raising your head. Whether you’re navigating tight terrain or transitioning between targets at variable distances, this mount keeps your backup sight inline, stable, and instantly accessible.

The mount is machined from 7075 aluminium and finished to exacting standards. It is compatible with the Primary Arms 24mm Mini Reflex Sight and other optics using the Holosun 507C footprint. Backed by the Primary Arms Lifetime Warranty, it’s built to endure the harshest recoil and field conditions without compromising zero or reliability.

Features:

• 7075 Aluminium construction
• Black hardcoat anodised finish
• For use with 1.5” PLx 30mm scope mounts
• 2.04” height for the red dot sight at the base
• Popular Holosun 507c style footprint
• Made in America
• 16-18 in. lb. Recommended torque specs
• Primary Arms Lifetime Warranty

Another key advantage of the piggyback-style top mount is its true ambidextrous usability — allowing you to maintain a clear sight picture with your red dot regardless of which shoulder you’re shooting from. Unlike traditional side-offset mounts, this 12 o’clock setup keeps your optic visible from a wider range of positions and angles. Whether you’re running it as a backup sight or a fast-transition optic, a PLx top-cap mount from Primary Arms ensures rock-solid performance and complete flexibility.