BARREL NUT HK416 / MR556 A3 STEEL NEFARIOUS ARMS

$76.50

HK416 / MR556 barrel nut, A3 style by NEFARIOUS ARMS.

These barrel nuts have a phosphate finish.

🇺🇸 Made In USA.

10 in stock

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HK416 / MR556 barrel nut, steel, A3 style, NEFARIOUS ARMS. Barrel nut manufactured in USA to HK dimensions, Material is ETD150 Hardness is 28-32 Rockwell C. Manganese Phosphate protective coating per MIL-DTL-16232G, Type M, Class I.

🇺🇸 Made In USA.