Crimson Trace LG-403 Lasergrips

• Instinctive Front Activation: the laser engages as the pistol is gripped in a normal firing hold, so the aiming reference is available immediately without adding a separate step under time pressure.
• Grip-Replacement Design: the LG-403 integrates into the pistol as a dedicated grip set, preserving a clean profile that typically works with most holsters while keeping the handgun easy to handle.
• User-Adjustable Windage and Elevation: point of aim can be matched to the pistol and ammunition, which helps the laser serve as a practical sighting aid rather than a generic add-on.
• Red Class 3R Laser: the 633 nm beam provides a clear aiming point for fast target acquisition, especially useful when shooting positions or lighting make iron sights slower to align.
• Rubber Activation Strap with Polymer Panels: the combination improves control and durability, giving the shooter a secure grip surface while protecting the laser unit in regular field or range use.

About the Lasergrips Series

Crimson Trace Lasergrips are built as grip-integrated laser sights for handguns, placing the aiming laser into a format that feels natural on the firearm rather than added on as a bulky external module. Within the company’s handgun-laser lineup, the series is aimed at shooters who want a dedicated fit for specific pistol and revolver platforms, with an emphasis on fast activation and minimal change to normal handling. A defining feature across the range is Instinctive Activation, which positions the pressure switch so the laser comes on during a standard firing grip.

That design makes the series well suited to defensive use, training, hunting sidearms and general range shooting, where speed and repeatability matter more than extra controls. Depending on the model, Lasergrips are offered for a wide variety of handguns and are shaped to follow the lines of the host firearm closely. The family is known for its practical ergonomics, model-specific fit and a low-profile installation style that helps maintain compatibility with common carry or field setups. In use, the series gives shooters a visible aiming reference that can support faster sight confirmation from unconventional positions and in lighting conditions where iron sights are harder to read.

About the Crimson Trace LG-403 Lasergrips

The Crimson Trace LG-403 Lasergrips are a model-specific red laser grip for Ruger Mark II and Mark III pistols, excluding 22/45 variants. Instead of attaching to a rail or trigger guard, this unit replaces the factory grip, which keeps the pistol’s profile streamlined and preserves the handling qualities that make these rimfire handguns popular for plinking, small-game hunting and training. Because the laser is built into the grip, the sight remains closely aligned with the handgun while avoiding the bulk that can interfere with balance.

The system uses front activation, so the laser appears when the pistol is held with a normal shooting grip. In practice, that means quicker target reference without shifting hand position or searching for a separate switch. The 633 nm red laser is paired with user-adjustable windage and elevation, allowing the aiming point to be tuned to the pistol and chosen load. Its stated 0.50 MOA dot size helps keep the aiming point precise enough for deliberate rimfire work while still being easy to pick up quickly.

Construction combines hard polymer side panels with a durable rubber activation strap, giving the LG-403 a secure feel and solid day-to-day durability. The unit also includes a master on/off switch, so the laser can be disabled when not needed. For shooters using the Ruger Mark platform as a field pistol or training handgun, the LG-403 adds a fast visual aiming aid without changing the pistol into a more cumbersome setup.

About Crimson Trace

Crimson Trace was established in 1994 and built its reputation around firearm-mounted aiming and illumination products. The company is especially known for laser sights and firearm-mounted lights, with product families that include Lasergrips, Laserguard and Rail Master. One of its defining concepts is Instinctive Activation, which uses pressure pads positioned so the laser engages with a normal shooting grip rather than requiring a separate deliberate switch press.

Beyond handgun lasers, Crimson Trace also produces riflescopes and rangefinders, showing a broader focus on shooting optics and sighting equipment. The company operates a facility in Columbia, Missouri, United States, and its product range reflects a long specialization in practical aiming systems designed to integrate cleanly with firearms used for defense, training, hunting and professional applications.

Main Features

• Product Type: Handgun laser sight
• Compatibility: Ruger Mark II and Mark III pistols, excluding 22/45
• Attachment: Grip replacement
• Laser Color: Red
• Laser Class: Class 3R
• Laser Power: 5.00 mW
• Beam Specification: 633.00 nm
• Dot Size: 0.50 MOA
• Modes: Laser Only
• Activation Type: Instinctive - Front
• Activation Location: Front Activation
• Windage and Elevation Adjustment: Yes
• On/Off Switch: Yes
• Auto Turn-Off: No
• Material: Rubber
• Color: Black
• Country of Manufacture: China

Warranty

Crimson Trace covers the LG-403 with a 2-year warranty. This gives the owner a clearly stated manufacturer warranty period for this handgun laser sight.

In the Box

• Crimson Trace LG-403 Lasergrips
• Installation guide
• Two CR2032 or DL2032 lithium batteries