LaserMax Guide Rod 9mm Laser Sight for Smith & Wesson M&P Full Size

This Guide Rod Laser fits the Full Size Smith and Wesson M&P 9mm,40 caliber & 357 sig. Battery Model: LMS-3x393 (readily available silver oxide batteries commonly used in watches) Accuracy (20 yards): ±2-Inch POA. Laser Operating Temperature: 15°-120°

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