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AR9 w/ 8" barrel. does not function properly. constant failure to feed. could the longer length of the buffer be a issue. Ammo isn't under powered — 1 Answer

by CORPS TAC, from NJ, United States Asked on August 25, 2021

Name Guntec USA AR 9mm Buffer (4.4)
$49.14 $37.89 Save 23%
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Answered by Brandon B, Gear Expert, from IL, United States, on October 11, 2021

The length of the buffer should not be the issue. It might be the spring he is using. The buffer takes a 5.56 carbine spring – maybe the customer needs a diferen spring.

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