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Our (SOT) Stripped Billet Upper and Lower (Set) is a high quality, sleek, versatile Billet Receiver Set that will complement any build!
Our SOT Forged A4 Upper Receivers are great start to any build! They are precision machined with extended M4 feed ramps to enhance reliability.
Our (SOT) Billet Upper Receiver is one of the nicest uppers ever made! Designed & Machined stronger than forged uppers. (With Forward assist and Ejection port door installed)