Aluminum Construction - LIFETIME WARRANTY   •  Aircraft Grade Aluminum Construction with a Matte Black Anodize Finish •  Low Profile, Compact, and Lightweight 3.47" in Length and weighs only 3 oz. •  Removable Offset Mount Provides 1.60" Forward or Rearward Offset in addition to the Flashlight Ring's 1.12" Vertical or Downward Offset •  Comes with 2 Polymer Inserts to Accept 27mm, 25.4mm (1"), or 20mm Flashlight Tube Diameters •  Adaptable Orientation of Flashlight Ring Allows for Increased Compatibility Across More Firearms, Handguards, Front Sights, etc. •  Includes M-LOK® Steel Locking Nuts, Screws, and Allen Wrench for Simple and User Friendly Installation, No Gunsmithing Required The Best Never Rest Warranty - Lifetime Leapers, Inc. warrants that all UTG & UTG PRO products conform to published specifications and are free from defects in material and workmanship. They will repair or replace defective products for the duration of the product's life span. Their dedicated in-house customer service professionals will provide the best-in-class UTG experience. NOTES: The warranty does not extend to products disassembled, damaged from misuse, accidental impact, negligence, natural disasters/accidents, or unauthorized repair or alteration. For UTG SPORT airsoft products, please refer to the warranty information on each individual product page which supersedes the Best Never Rest Warranty. Warranty Instructions You can either contact the store where the product was purchased OR get in contact with us on our website. To submit a warranty case to Leapers/UTG, please follow the following steps: Go to Warranty Request under Customer Service on the UTG Leapers website. Fill out the necessary contact and product information to the best of your knowledge. A purchase receipt is required for all warranty cases and needs to be attached at the end of the form. Finalize the case by submitting the information to UTG. You will hear from customer service reps within 24-48 hours and they will provide you with additional information and instructions. For any questions regarding the process, please contact UTG Leapers.