FM Products FM-45 AR Rear Charging Upper Receiver w/ Micro Brake .45 Caliber Ultralight Profile Black FM45-RS-1615
$489.00
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FM Products FM-45 AR Rear Charging Upper Receiver w/ Micro Brake .45 Caliber Ultralight Profile Black FM45-RS-1615. 45 Rear Charging Upper Receiver w/ Micro Brake. For complete concealment these AR15 Upper Receivers by FM Products come with a built-in...