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Real steel - Luth-AR Carbine Lock Ring/Castle Nut
by
MattFromOKC,
Verified Owner
from OK, United States
Written on October 2, 2026
MattFromOKC's Review of Luth-AR Carbine Lock Ring/Castle Nut
This part was bought to convert my shotgun to a tactical set-up, and it is the part for the job. I prefer steel over the fancy (but easily marred) aluminum bits on the market. This castle nut fits the mil-spec tubes.
Would Recommend:
Yes
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