Elevate your firearm's performance and reliability with our expertly crafted pinned gas block barrels. Designed for enthusiasts who demand precision and peace of mind, these barrels integrate seamlessly with your setup, ensuring your gas block remains steadfastly in place during operation. By combining the security of pinning with set screws, we eliminate the common concerns of shifting or loosening, providing you with unwavering confidence in every shot. Our pinned gas block barrels are a testament to innovation and convenience. We've taken the hassle out of pinning by pre-notching the gas block journal and precisely drilling corresponding holes in the included low-profile gas block. This meticulous attention to detail ensures a perfect fit and easy installation. Each barrel comes complete with a pin and a gas block, hand-tightened for secure shipping, so you're ready to go right out of the box. At Faxon Firearms, we pride ourselves on delivering unparalleled value. Our barrels are manufactured in-house, embodying the pinnacle of craftsmanship and quality. Each barrel undergoes a rigorous process, starting with the finest materials - either certified 4150 mil-spec steel or 416-R stainless. They are fully stress relieved, air Gauge tested and finished with an 11 degree target crown to guarantee superior accuracy. Our commitment to excellence is evident in every step of production. From initial material selection to the final nitride finish, each barrel is subjected to a comprehensive series of tests, ensuring it meets our exacting standards. Precision custom hardened Gauges are used to individually check headspace, providing you with a product that is as reliable as it is precise. Choose Faxon Firearms pinned gas block barrels for a seamless blend of innovation, quality and performance. Whether you're a competitive shooter or a dedicated enthusiast, our barrels are engineered to enhance your shooting experience, delivering consistent accuracy and reliability with every pull of the trigger.

11 degree target crown
Twist rate - 1:8
Gas block diameter - 3/4 inches
Gas block journal length - 1.9
M4 barrel extensions
Carbine length, button-rifled, SOCOM barrel
Magnetic particle inspection (MPI) for optimal performance to ensure optimal performance, it is essential to conduct magnetic particle inspection (MPI) with precision and adherence to established protocols
This non-destructive testing method is employed to detect surface and near surface discontinuities in ferromagnetic materials
By applying a magnetic field to the test object and introducing magnetic particles, any disruptions in the magnetic field caused by defects become visible, allowing for accurate identification and assessment
Proper execution of MPI requires a thorough understanding of the equipment, materials and techniques involved, as well as strict compliance with safety standards and guidelines

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These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).