Description
Heckler and Koch Castle Nut for Buffer Tube for HK416 and HK MR556
New HK German manufacture. This buffer tube castle nut will fit both mil-spec and commercial buffer tubes. All steel manufacture. With HK round tool attachment points as well as traditional wrench attachment points.
Compatible With:
- HK416, MR556
- M27
- Other AR, M4 and M16 projects
Additional Information
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FIREARM MODEL(S):
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HK416
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FIREARM MODEL(S):
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MR556
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FIREARM MODEL(S):
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M27
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CALIBER:
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5.56 / .223
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MATERIAL:
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Steel
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COLOR:
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Black
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ORIGIN:
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Germany
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