BASTION GLOCK 42 Butt Plate, Rear Slide Cover Back Plate for Glock 42 .380 Accessories ONLY Laser Engraved - CUSTOM INITIALS ROMAN Compatible with Glock 42 .380cal Model ONLY Hard coat anodized black T6 machined aluminum Lasered artwork won't rub off; not painted Replaces plastic factory part Maximum 3 characters (letters or numbers)