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Smyth Busters: Are Polymer AR-15 Lowers Any Good?

Smyth Busters: Are Polymer AR-15 Lowers Any Good?

65
Published on July 26, 2022
Duration: 3:58

This video tackles the common myth that polymer AR-15 lower receivers are inferior to traditional aluminum ones. Brownells Gun Techs Steve Ostrem and Caleb Savant discuss how early polymer lowers had issues, but modern designs, like the KE Arms KP-15, have addressed weaknesses at critical stress points. They draw parallels to the durability of Glock pistols to illustrate the potential of well-engineered polymer. The conclusion is that a properly designed and manufactured polymer lower can be just as good as an aluminum receiver, busting the myth.

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