The port buffer will put bigger scratches on your '43 than brass dings. I've got a '43 that came with a carry handle on it. Same story. Leaves some scratches. Just about every HK accessory leaves a mark! Designed for users not collectors. Don't shoot my '43 either though. I bought a Vector V93 to put mileage on.I have an HK 43 thats a safe queen. While I have plenty of mags and ammo, I just can't bring myself to shoot it. Trying to find an HK ejection port buffer first.