The new Radian Ramjet mechanism for the Glock 43X is earning considerable praise from the compact pistol group. Frankly, the construction is solid , featuring a compact tube designed to boost speed . https://eliteshootersupply.com/shop/caa-usa-mck-3-0-for-glock-17-19-19x-20-21-22-23-25-31-32-45/