SKU: SWI120-250-300B
MPN: 120-250-300 B
The Barrel Spring 12in x 2.5in x 300# by SWIFT SPRINGS is a heavy-duty compression spring designed for precision firearm assemblies, suppressor mounting systems, and bolt-carrier group components. Tactical operators, armorers, and competitive shooters rely on this spring for its consistent force and reliable cycling, essential for high-performance rifles and carbines.
This spring features a 300 pounds per inch spring rate, ensuring responsive feedback and load-bearing capability. Built to exacting tolerances, it is manufactured from premium alloy steel using precision coiling processes that resist fatigue, corrosion, and stress relaxation even after extensive use. The structural geometry of the spring is optimized for high spring rate applications without compromising clearance in compact receiver designs.
Law enforcement armorers, military gunsmiths, and civilian competition shooters benefit from the Barrel Spring 12in x 2.5in x 300#, which is ideal for bolt-carrier assemblies, recoil mitigation systems, and suppressor timing applications. Its reliable performance under various environmental conditions makes it a trusted choice for maintaining firearm functionality.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
