The Firearm Blog

[ I am pleased to present this guest post was 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 shooter.

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.

We have seen some cool iPhone applications come out for shooting sports. But nothing comes close to the sheer awesomeness of the Knights Armaments M110 iPod Touch mount and accompanying ballistics software.

The M110 is the 7.62×51mm semi-automatic sniper system which won the Army’s competition to replace the aging M24 bolt action sniper system. While it will not replace the M24 in the near future, the system is seeing action in Iraq and Afghanistan.

The rifle is based on the SR-25, which in turn is based on the Stoners’ AR-10 design.

Knights Armaments have developed a mounting system for the iPod Touch that attaches to a side mounted picatinny rail. The mount attaches to an Otterbox protective case.

Click to expand. Photo ⓒ Chen “SMGLee” Lee. Used with permission.


Click to expand. Photo ⓒ Chen “SMGLee” Lee. Used with permission.

KAC contracted Runaway technologies to build an external ballistics calculator for the iPod Touch / iPhone named Bullet Flight. It is your standard ballistics application. You can set firearm / ammunition profiles, then call up the saved profile and enter your environment information, for example, distance, wind direction, elevation and temperature.

The application is available from the iTunes store for $11.99. It is a lot more expensive than the $4.99 iSnipe application.

We may yet see an iPhone on the battlefield