Primary Arms Slide Mount Magnification Flip Lever PA-UML (also known as the Primary Arms Slide Mount Magnification Throw Lever or "Flippy Boy" throw lever).
This is a versatile, optional magnification throw lever designed specifically for Primary Arms dovetail-compatible rifle scopes (primarily from the SLx, GLx, and PLx lines, such as the SLx 1-6x Nova and similar LPVOs). It replaces or augments the standard magnification ring lever, allowing faster and more ergonomic power changes during dynamic shooting, competition, or tactical scenarios. The standout feature is its hinged "slide mount" design that lets the lever flip down into a low-profile position when not in use, reducing snag risk and bulk.
Key Features & Specs
- Design: Slide-mount attachment with a built-in hinge mechanism. The lever can be flipped up for use or folded back/down toward the eyepiece for a streamlined profile. This prevents interference with other accessories or when shouldering the rifle quickly.
- Height Settings: Two different height positions for versatility — ideal for competitive shooters needing aggressive leverage or tactical users preferring a more compact feel.
- Installation: Dovetail slide-mount system for quick, tool-free or minimal-tool attachment on compatible magnification rings. Fits most Primary Arms dovetail-style scopes without permanent modification.
- Construction: Lightweight anodized aluminum (black finish) with durable components. Shock-proof, weather-resistant design built for rugged field or range use.
- Operation: Provides excellent leverage for smooth, rapid magnification adjustments (e.g., from 1x to 6x or higher). The flip action makes it more user-friendly than fixed throw levers in tight spaces or when wearing gloves.
- Size & Weight: Compact and minimal — adds very little bulk or weight to the optic (exact specs vary slightly by installation but remains low-profile).
- Additional: Backed by Primary Arms' lifetime warranty. Includes necessary hardware for installation. Compatible with a wide range of Primary Arms LPVOs that feature the dovetail magnification ring.
Users (including reviews and install videos) praise it as a significant upgrade over standard fixed levers — the flip-down capability keeps the lever out of the way during storage, transport, or close-quarters handling while still offering quick deployment. It's especially popular on the newer SLx 1-6x "flippy boy" compatible scopes for fast transitions between close and mid-range. Some note it works well on multiple optics in the Primary Arms lineup, though compatibility should be verified for your specific scope model.
Who It's For
- LPVO owners (1-6x, 1-8x, etc.) wanting faster magnification changes without added snag points.
- Competitive shooters (3-Gun, PRS-style, or practical rifle) or tactical users needing ergonomic speed.
- Anyone running Primary Arms SLx/GLx/PLx scopes who prefers a low-profile, adjustable throw lever.
