CRIMSON TRACE LASERGRIP S&W M&P FULL SIZE LG-660

The Crimson Trace LG-660 Lasergrips are rear-activation red laser grips built for Smith & Wesson M&P full-size pistols, closely replicating the look and feel of the factory backstrap insert. These full-size M&P Lasergrips add a powerful red aiming dot while keeping the pistol’s profile and holster fit very close to stock.

Key Features

• Model: LG-660 Lasergrips for Smith & Wesson M&P full-size.
• Fit: first generation M&P full-size pistols in 9mm, 357 SIG, 40 S&W, and 45 ACP; not compatible with ambidextrous safety models or any M&P M2.0 variants.
• Attachment: replaces the removable factory grip insert/backstrap with a self-contained laser grip module.
• Activation: rear Instinctive Activation button that turns the laser on under a normal, proper firing grip.
• Laser type: red laser, 5mW peak, approximately 633 nm, Class 3R.
• Dot size: about 0.5 inch at 50 feet.
• Power: two CR2032 lithium batteries.
• Adjustment: user adjustable windage and elevation using the supplied tool.
• Construction: hard polymer shell shaped similarly to the factory medium backstrap, with a slight palm swell and textured surface.

Special Features

• Instinctive rear activation brings the laser on automatically when you grip the pistol, so there is no separate switch to hunt for during a draw or under stress.
• Side-mounted diode housing keeps the laser close to the frame, preserving the pistol’s original outline and compatibility with many standard duty and concealment holsters.
• The backstrap-style module lets you move the LG-660 between compatible first-gen M&P full-size pistols of different calibers without changing your trigger or slide setup.
• Designed specifically around the full-size M&P frame rather than as a generic clamp-on accessory, giving a factory-like appearance and feel.

Practical Benefits

• On full-size M&P pistols, the LG-660’s red dot helps you confirm point of aim quickly from unconventional positions and in low light where traditional sights can be harder to see.
• The laser provides immediate visual feedback during both live fire and dry practice, helping you refine grip and trigger control and tighten groups at realistic defensive distances.
• If you run a first-generation M&P full-size and want a low‑bulk, holster‑friendly way to add a red laser without cluttering the rail, the Crimson Trace LG-660 Lasergrips are a practical choice that integrates the sight directly into the grip module.