Knowledge Center

  • M4E1 Lower Receiver vs. Gen 2/X15 Lower Receiver

     

    The lower receiver is the registered portion of the AR15 that houses many critical components such as the fire control group and buffer assembly. This is generally the part you will want to start with when building an AR15.

    Aero Precision offers two lines of AR15 pattern lower receivers, the X15/Gen 2 Lower Receiver and M4E1 Lower Receiver.

    X15/AR15 Gen 2 Lower Receiver Details

    Our X15/AR15

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  • Recent posts

    1. M4E1 Upper Receivers - Threaded vs Enhanced

       

      M4E1 Threaded Upper Receiver vs M4E1 Enhanced Upper Receiver

      Aero Precision M4E1 Upper Receivers are offered in two configurations - the M4E1 Threaded Upper Receiver and the M4E1 Enhanced Upper Receiver. Our M4E1 Upper Receivers are manufactured from custom forgings, providing billet like aesthetics at a great price. These 2 receivers are nearly identical in every way

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    2. What you will need after buying an AR15 Stripped Lower Receiver

       

      Kirk from Aero Precision reviews the components you will need for building out your AR15 Stripped Lower Receiver to complete your lower receiver assembly. Components reviewed include the lower receiver, lower parts kit, buffer kit, stock/brace and magazine.

      Stripped Lower Receiver

      When building an AR15 Lower Receiver, the first thing you will need is a stripped lower receiver. This is the registered part of the AR15

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    3. What you will need after buying an AR15 Stripped Upper Receiver

       

      Kirk from Aero Precision reviews the additional components you will need after purchasing an AR15 Stripped Upper Receiver. Components covered include the upper receiver, bolt carrier group, charging handle, barrel, muzzle device, gas tube, gas block and handguard.

      Stripped Upper Receiver

      The first thing you will need for an AR15 Upper Receiver build is either a stripped

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