This steel AR-15 castle nut is virtually indestructible and works with commercial, military, and hybrid buffer tubes. It fits most AR-15s and AR variants, but it is not compatible with 308 rifles. This AR-15 castle nut is made by ATI in the U.S.A.
MPN: A5101020
UPC: 758152900067
Brand: Advanced Technology
Department: Firearm Parts » AR-15 » Castle Nut
Advanced Technology Firearm Parts AR-15 Castle Nut Steel Black [A5101020]
Model: AR-15
Finish: Black
Material: Steel
Application: Gun Part
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