Rainier Arms RUC DI 5.56 NATO Complete Upper 16in Black Medium RA-RUC-DI-16M-CU
$830.00
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Description
Rainier Arms RUC DI 5.56 NATO Complete Upper 16in Black Medium RA-RUC-DI-16M-CU. Bringing the highest quality parts to the market while offering the best value as well. This complete upper utilizes a direct impingement operating system on their new and...
