Midwest Industries Enhanced AR15 Flat Trigger Review
The AR15 has grown into the most customizable and most popular rifle in the country. While some upgrade are mostly cosmetic, one of the easiest ways to make a rifle easier to shoot well is to upgrade the budget minded, often lawyer approved factory trigger. Midwest Industries has added another contender to the list of trigger options with their Enhanced AR15 Flat Trigger. This is a cartridge style trigger with an anodized aluminum frame that holds S7 steel internals. S7 is a high-end shock resistant steel that is used in tool and die work. The trigger comes with anti-walk pins and all the hex wrenches needed for easy installation.
The first step in upgrading to the MI Enhanced AR15 Flat Trigger is removing the pistol grip, even if it seems like a strange place to start. ARs use the pistol grip to hold the safety spring and detent in the bottom of the receiver. A 3/16″ hex wrench is the easiest way to reach up inside the body of the pistol grip and loosen the single, large bolt used to hold the grip in place.
Once the bolt is out, slowly wiggle the grip down from the receiver. This is best done with the barrel facing towards your right, as this makes it easy to see the spring and detent hiding above the pistol grip. Take a bit of time with this step, as chasing springs and detents around the workshop is even less fun than it sounds. Set these parts aside, as we will need them for reassembly later.
Next, use a punch to press out the front trigger pin, which is the one closest to the magwell. The hammer is held in place by this pin. It is under spring pressure and will likely pop out when the pin is pushed free and the punch is removed.
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