This guide details the field-swappable barrel and bolt head process for the Remington PSR, as demonstrated by Special Forces SMEs. It emphasizes precise torque specifications for critical components like the barrel nut (35 inch-pounds) and magazine block (65 inch-pounds) for maintaining accuracy and reliability across different calibers (.308 Winchester, .300 Winchester Magnum, .338 Lapua Magnum). The modularity allows for rapid caliber changes and field repairs, enhancing operational readiness.
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