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Do you need to upgrade the stock buffer spring in Ar556 to upgrade to 762x39? — 2 Answers

by Jojoe, from UT, United States Asked on January 14, 2021

Name Radical Firearms Complete Upper Assembly 10.5in 7.62x39, 4150V, HBAR Contour w/ A2 Flash Hider (5)
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Answered by Ben, Gear Expert, from UT, United States, on October 08, 2021

Please email us at techsales@opticsplanet.com so we can further answer your question.

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Answered by Grunt3327, member, from WI, United States, on April 05, 2023

Yes, you would need to upgrade to a heavier spring and buffer (H1). With the buffer spring, you can look at the PA-10, a 308 heavy-duty spring. Either way, you'll need something a little bit beefier, where and what you get is up to you. Hope this helps.

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