The NcStar red laser sight fits pistols and guns that have rails. This cross-thread screw that needs to go through a cross notch sits further back that most lasers, so it fits almost any railed gun like the Walther P22 (Gen 1) with only 1 cross-notch

• Red Laser: Freq. 635-655nm, Class IIIa Laser
• Maximum Output: <5mw
• Weaver Mount will easily Clamp onto Compact and Subcompact Pistols that have a Weaver Style Accessory Rail
• Fully Adjustable for Windage and Elevation
• Side to Side Toggle On/Off End Cap Switch
• All Aluminum Construction. Black Anaodized finish
• Uses 2 each AG13 button cell batteries (Included)
• Includes mounting tools
• Dimensions: 1.7" L x 1.0" W x 1.1" H
• Weight: 1.3 oz

NcSTAR® Limited Lifetime Warranty

• All NcSTAR® optics are warranted and protected from defects in materials and workmanship for the lifetime of the product. If any NcSTAR® product is found to have defects in materials and workmanship, New Century NcSTAR® Inc., at our discretion, will repair or replace the product. If the product was purchased within 90 days, a copy of Proof of Purchase is required. If the product was purchased over 90 days, a $10 handling fee must be made payable by check or money order to NcSTAR®. A Return Merchandise Authorization (RMA) must be issued before returning the product.NcSTAR® accessories are warranted and protected from defects in materials and workmanship for ONE year. A copy of proof of purchase must be provided. If the product was purchased over 90 days, a $10 handling fee must be made payable by check or money order to NcSTAR®. A Return Merchandise Authorization (RMA) must be issued before returning the product.