GRG Archery Laser Sight Tool for Bow and Crossbow, 223 Bore Sighter Shaped, Made of Brass, Self Color Go to amazon.com Related posts Top 7 recommendation crossbow laser boresighter for 2022 FeatureArchery Laser Sight Toolfor Bow and Crossbow223 Bore Sighter ShapedMade of Brass, Self ColorClass IIIa 635nM Less Than 5mW DescriptionArchery Laser Sight Tool for Bow and Crossbow, 223 Bore Sighter Shaped, Made of Brass, Self Color. Class IIIa 635nM Less Than 5mW