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The BT-4 Combat is the choice of demanding players who are looking for a solid and cost effective base to build up with custom parts with the ability to use military spec features. The combat comes with BT reliability and battle tested durability.
The BT-4 comes with a removable barrel system. This feature allows the user to select a barrel that is suitable for the playing conditions. Standard barrel mirror honed with a step-bore and porting.
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