The SilencerCo AC863 Glock 45 ACP compatible threaded barrel is expertly designed for the Glock 21 Gen3, featuring a robust 5.30-inch length crafted from durable 416R stainless steel and finished in sleek black nitride for enhanced resilience against harsh conditions. This high-quality barrel is essential for those looking to attach a pistol suppressor, as it provides the necessary threading to accommodate a silencer, ensuring a seamless shooting experience. Each SilencerCo threaded barrel comes equipped with a thread protector, safeguarding the threads when not in use. Ideal for both competitive shooters and recreational enthusiasts, this barrel enhances accuracy and reduces recoil, making it a valuable addition to your Glock setup. Whether you are at the range or out in the field, the SilencerCo AC863 offers the reliability and performance you need for effective shooting with your Glock 21.