My rifle is a Bushmaster XM15-E2S. 20" chrome lined barrel, chambered in .556 in the A2 style (full length rifle, carry handle, etc). The rifle was bought during the so called "Assault Weapons Ban" of the mid 90's, therefore, it does not have a threaded barrel or bayonet lug(because these were so evil). The plan is to buy a shorter 16" barrel, free float hand guards, a collapsible stock and a flat top upper receiver. Basically change everything but the lower receiver... and eventually change that out too. I'll leave all that for later posts, but today I'll be discussing the current modifications that I have made to the rifle.
These modifications are first because they were available(many AR parts are in high demand) and they were relatively low cost. I'll explain the usage, provide a link and rate the difficulty of installation on a 1 to 5 scale. Here are the products, their purpose and installation:
Installation: Difficulty: 1, tools required: none. This part is drop in, literally. When field stripping the AR-15, the charging handle is probably the second part to be removed and comes out in about 2 seconds. First, you push out the rear receiver pin, letting the upper receiver hinge forward. Then you pull the charging handle rearward and the entire bolt assembly and charging handle will fall out of the receiver. Simply insert the new handle and bolt carrier group into the receiver and reinsert the pin.
Installation: Difficulty 2, Tools required: 1/8" punch (roll pin punch is best), pin punch hammer, bench block (or roll of tape), blue masking tape. This one can be a little tricky without the right parts, so invest in a nice punch set if you are going to do this yourself. PROTIP: Put some blue masking tape in the area around the pin hole. This will keep you from marring your lower receiver with the pin punch. Use the 1/8" punch to push the front detente pin in, this will allow the original part to swing down. Then using the same punch, drive the rear roll pin out. Using a bench block, or roll of tape on the backside will help facilitate this. The installation is basically the reverse. Install the new roll pin (included). This can be a little tricky, use the bench block and a stable platform. Then install the allen head screw (included) with the corresponding allen wrench (not included) in the front pin hole and you are done!
Installation: Difficulty: 1 Tools required: Torx wrench (included). This one is pretty easy too. Place the backing plate behind the bolt catch paddle. Place the level over the paddle and install the torx head screw(included) using your torx wrench(included). Easy as pie.
These modifications are simple and only the beginning of my journey. Stay tuned for part 2 in the 87 parts series: AR15, "The Project".






















