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Q&A for Luth-AR 18 in Bull Barrel Complete Upper Barrel Receiver Assembly — 2 Questions & 3 Answers

Name Luth-AR 18 in Bull Barrel Complete Upper Barrel Receiver Assembly
$497.95 $468.07 Save $29.88
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Q
Stephen Clabots, member, from WI, United States, asked on March 08, 2025

Can you shoot a 5.56 through a .223 barrel?

Manufacturer Answer
A
Answered by Luth-AR, Manufacturer from MN, United States, on March 12, 2025

The stainless steel bull barrels should only be used with 223 ammo as the leade throat area is cut to those dimensions for accuracy reasons.

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Q
King, member, from AR, United States, asked on October 09, 2024

is this 223 only or 556

Manufacturer Answer
A
Answered by Luth-AR, Manufacturer from MN, United States, on November 27, 2024

The 223 uppers are cut and made for 223 only to keep the accuracy as high as possible.

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Last updated 2026-09-01 UTC.