Gun Review: Knight’s Armament SR-15

    [ I am pleased to present this post written by Isaac. ]

    Knights Armament as a company has had a notable hand in the evolution
    of Eugene Stoner’s classic AR-15 design. One of the most obvious
    results of that heritage is visible in the SR-15 E3 IWS (Integral
    Weapons System).

    The biggest question when people see the SR-15 is “what’s different
    about this gun to make it special?” And to answer that is to look
    under the hood and understand that the SR-15 doesn’t seek to be the
    most accurate, or the most durable gun (the SR-15 E3 IWS actually
    groups 1.25moa or better, so it’s no slouch). What it does is be one
    of the most complete package rifles that require almost no user
    modification or tweaking. And by doing so is an incredibly reliable
    and lightweight rifle with a plethora of features.

    From the inside out Knights has given the SR-15 a longer than mid-
    length gas system, which provides for an extremely smooth and reliable
    operation. The rifle also features a larger bolt cross section, which
    serves to improve overall durability. The hammer forged barrel groups
    very well, and in combination with the very lightweight URXII rail
    (including integrated front sight, and included match grade rear
    sight), gives the gun an extremely svelte appearance and light overall
    weight. All combined with their match grade trigger assembly and
    offering completely ambidextrous controls to those who are southpaws
    (or shooters working off their reaction sides).

    So, SR-15 feature primer aside, how well does it actually shoot?
    Amazingly well. Having run the gun in a few carbine courses and
    competitions, and run it hard, the gun has easily become the rifle I
    count on as my ‘go to’ gun. What it offers me is an extremely
    lightweight rifle (even running lights and lasers) that gives me an
    above average level of accuracy from a fighting carbine. Short of
    changing out some furniture to fit my personal needs, the gun has not
    required any tuning or fixes. An extremely smooth gas system in
    combination with the Knights Armament triple tap brake (not included)
    creates a rifle with almost zero muzzle flip. In the end what the
    rifle brings to me is a gun that far exceeds my own capabilities as a

    The value of the SR-15 E3 IWS is obviously relative to the needs of
    the shooter. Some may never need the features of the SR-15, and that’s
    a valid point. However considering what you get as a package (LMT
    SOPMOD stock, 16” hammer forged barrel, ambidextrous lower,
    lightweight continuous railed forearm, etc) you’re getting a great
    value. For those who want or need a gun that requires practically no
    modifications to achieve maximum durability and performance, this is
    obviously an excellent choice that far exceeds the levels of what make
    up a top tier AR-15 rifle.

    Steve Johnson

    I founded TFB in 2007 and over 10 years worked tirelessly, with the help of my team, to build it up into the largest gun blog online. I retired as Editor in Chief in 2017. During my decade at TFB I was fortunate to work with the most amazing talented writers and genuinely good people!