Full aluminium cylinder (AUG, M16, AK, G36K-E...) [Shooter]
Full aluminium cylinder (AUG, M16, AK, G36K-E...) [Shooter] Light aluminium cylinder. Suitable for rifles with the long barrel. For example AUG, M16A2, G3, AK...etc. Not suitable for NBU piston/cylinder heads.
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