Material: aluminum alloy, compatible for AV41 lensSize: 21*10*9.5cmWeight: 870gFeatures: double mirror, fine-tuning design, locking function 11. 0.019 fiber optic 5-pin adjustable: with light-engraved indicator marks, used to precisely adjust the micro-elevation, deviation housing and the third axis. According to the different habits of different users, the five-pin spacing can be easily adjusted by rotating the adjuster. 22. Comes with night aperture: The adapter comes with a night aperture, which can be used with a 6x lens, with a high-definition and robust lens compatible for AV41. 33. New lightweight design: aluminum alloy composite bow and long rod sights, sturdy and durable, corrosion-resistant, lightweight and easy to carry. 44. Simple installation: fix the sight on the bow with the original big screws. 55. Type: Two-handed (right-handed operation after assembly).