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to provide a fast, secure, and enjoyable experience. by Dylan, from NC, United States Asked on October 13, 2019
That really depends on a lot of factors and is not as simple as one buffer weight/spring is perfect for everyone. There are standard 9mm buffer weights and springs available for mil-spec receiver extensions. Please email us at techsales@opticsplanet.com and we can help you find the appropriate option for you.