Charge handle design flawed - Meta Tactical MX1 Conversion Kit for All Glock Pistols

The charging "horseshoe" that is inside and pulls back on the Glock slide broke after just 1 magazine. The design seems flawed, as the plastic U shaped "charging mechanism" sits directly in front of the barrel and takes the blast from every shot. They are lightly built and I can t see how they would last being built of that material. I broke the original after 15 rounds, then had a friend make me one out of carbon fiber on his 3D printer and that broke as well after 10 rounds. It seems only a metal piece would be strong enough to take the blast without breaking. Great concept but they obviously didn t do their product testing long enough