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STI & SVI magazines and springs – how can I get them to function reliably?

April 26, 2017function magazines reliably Springs sti svi

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STI & SVI magazines and springs – how can I get them to function reliably?

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There are a number of things that are involved in attaining reliable magazine function. Proper magazine dimensions are critical. ISMI includes the factory specifications on each package of STI/SVI magazine springs. If your magazine is out of spec, you can return it to the factory or have an experienced pistolsmith tune it. Make sure that the interior surface of the feed lips are smooth and free from burrs. Virgil Tripp at Tripp Research has conducted independent spring testing (see www.trippresearch.com) and covers his results in the tech talk section of his web page. They also provide a number of tips and recommendations for STI/SVI mag bodies.