Colt M16/M4/AR15 Auto Sear Assembly

(55 reviews)
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Colt M16/M4/AR15 Auto Sear Assembly


Factory Colt automatic sear assembly for M16/M4/AR15 rifles.

Replacement parts, all NFA rules apply


  • 5
    Colt sear

    Posted by Mark Winters on 6th Feb 2023

    Fast delivery

  • 5
    Auto zear

    Posted by Don on 25th Jan 2023

    Works like it should.

  • 4
    As described

    Posted by Happy customer on 24th Sep 2022

    Fit and function well

  • 5
    Awesome M16 Parts

    Posted by AZ Joe on 25th Apr 2022

    Genuine Colt M16 parts, can't beat them, great price for all the M16 parts as well.

  • 5

    Posted by MBHSR. on 12th Dec 2021


  • 5
    Trigger Parts

    Posted by Joseph on 28th Nov 2021

    Excellent Parts

  • 5
    Quick and professional

    Posted by Garett Holmes on 27th Nov 2021

    Quick and professional

  • 4
    Auto Sear

    Posted by Mathew (USMC) Veteran on 12th Oct 2021

    I am pleased and like the assembly. It is very clear and well made to use with no problem. I think this is a good product and would keep in the weapon box for future use.

  • 5
    Satisfied customer

    Posted by shawn b on 6th May 2021

    The items I purchased were exactly as described and shipping was fast... very pleased