High Caliber Customs utilizes the latest in laser engraving technology to exceed the BATFE requirements for engraving a firearm, receiver or parts. The ATF requires that all Form 1 short barreled rifles, shotguns or suppressors be engraved with the manufacturer's name (you or legal entity), city and state. Your Name / legal entity name and locale can be engraved any where it is visible and can be as small as 1/16" in height. The minimum depth required by the ATF is .003", but we always engrave deeper to handle coatings that may be applied in the future. High Caliber Customs can engrave underneath an integrated trigger guard found on billet lowers and on the underside of a flared mag well. Keep in mind the text must be visible without dis-assembly.