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One description of this say it is made from 4150 metal and the other says 4140...which one is correct? — 1 Answer

by joe, from FL, United States Asked on March 24, 2022

Name Luth-AR 5.56 Government Profile Lightweight Barrel (4.5)
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Answered by Ethan, Gear Expert, from IL, United States, on May 06, 2022

The Luth-AR 5.56 Government Profile Lightweight Barrel is made from 4150 Chrome Molly Vanadium. It is threaded with a 1/2×28 thread pitch, a 1-9 RH twist rate with 6 lands and grooves and an M4 feed ramp. This barrel takes a .750 gas block.

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