Spikes Tactical ST-T2 Buffer

I recently purchased this product for my Bushmaster xm-15. My rifle is a 16" with a carbine length gas system. While being compact and very easy to move around with, one of the flaws carbine systems have been associated with is a more violent reaction within the upper reciever due to higher gas pressures than that of a full length rifle system. This is because the expanding gases have less distance to travel before reaching the action, thus hitting it with more force. This more violent action sends the bolt carrier back at a higher rate, having more impact on the buffer and causing more stress to the buffer spring. Most companies dont consider this when making their carbines and install the same parts they install in their rifle systems. As a result, these carbines sometimes suffer premature malfunctioning of some of the internal parts. Spikes tactical has solved one of these problems by creating the ST buffer. Instead of solid weights shifting around inside this buffer, Spikes uses high density tungston powder to create a smoother shift in weight. These buffers come in three different weights to completely customise the effect it has on your carbine. The one I purchased was their middle weight, the ST-T2. This buffer is heavier than the standard carbine buffer which makes it harder to throw backwards by the bolt carrier, minimizing the harmful effects. It is also constructed of solid billet aluminum so there is no chance of it falling apart. It functions flawlessly in my carbine after hundreds of rounds and seems to also lighten the felt recoil due to a smoother reaction within the buffer tube. If you are looking for a great product at a reasonable price, try it out. Spikes also combines usefulness with a very cool look (see picture). These can be purchased in many places including Spikes Tactical's website, Ebay, or many other AR-15 parts retailers.