for Glock 42 .380 Back Plate Silver NDZ Plain for Glock 42 .380 Rear Slide Cover Plate Silver 1000+ High Resolution Permanent Laser engraved images, will not rub off, not painted, custom engraving too - by NDZ Performance 100% Aircraft Grade T6 Billet Aluminum, Mil-spec Hardcoat Anodized Durable Finish Replaces Stock Plastic Plate with a Durable Aluminum piece, Easy Install, Requires NO Modifications Designed and Made In America, In Our Facility - In NDZ Packaging