M4 Barrel Extension (M4 Feedramps)

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For your AR15, M16, M4. For use by barrel manufacturers. Use this M4 Barrel extention with M4 feedramps. For new construction barrels only.
***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

3 Reviews

  • 5
    M4 barrel extension

    Works and fits fantastic

  • 5
    AR-15 Barrel Extension

    I used the Bravo barrel extension on my first AR-15 barrel build, a 6mm ARC 21 & 3/4" barrel. The Extension fit the receiver perfectly and the threads and shoulder were very square to the barrel that I single point threaded. Great product and I received it within a few days of ordering it which was a nice surprise.

  • 4
    M4 Barrel Extension (M4 Feedramps)

    Not yet installed. Should come with an index pin and it did not. Pin not offered on the site?