To say a bolt carrier group (AR15 BCG) is the heart of your AR-15 style rifle is an understatement. Without it, your rifle is just a rather poor club. Having a bolt carrier group manufactured from quality materials is of supreme importance. The Bolt Carrier Group (BCG) is a critical component of the AR-15 (or…
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Looking into upgrading or building an AR platform? Chances are you’ve seen all the coating options available for bolt carrier groups. There are many different coatings out there and, in this post, we’re going to cover the most common and most relevant. Ready? Good – let’s get started! Phosphating Let’s start with the oldest and…
The bolt carrier group is a very important part of the AR-15. It is the part that contains many if not most of the important components for firing, from the firing retaining pin to the bolt cam pin, gas key, bolt assembly, carrier, and firing pin. A bolt carrier group is a complex piece of…
An AR15 upper receiver is the upper half of a rifle. Every essential component of an AR15 is contained in the upper receiver. There are four types of AR15 upper receivers, each with its own distinct design, advantages, or disadvantages. The four main receivers are known as the A1, A2, A3, and A4 upper receivers,…
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