Perfect for building your custom Mk4 upper group. Comes with properly installed M4 barrel extension. All barrel sub-assemblies are properly head spaced. Made of 4140CM with a SBN Finish.
| Weight | 1.6875 lbs |
|---|---|
| Dimensions | 17.8 × 2.5 × 2.5 in |
| type_of_barrel | 1:16 |
| barrel_length | 16.1 |
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| manufacturer | |
| product_type | Barrel |
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