Upper Receivers & Conversion Kits

This is the right place for Upper Receivers & Conversion Kits products. Thanks for taking time to reach the Upper Receivers & Conversion Kits department of FS Bullets & Brass. Our Upper Receivers & Conversion Kits department includes products from popular manufacturers like Colt's Manufacturing to help enhance your enjoyment.

Products in the Upper Receivers & Conversion Kits department change frequently as manufacturers release new products and discontinue old products. Add your email address or phone number in the box below to be notified when products in this department change.