Re: Bolt Carrier Group - Heavy or Light?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: splean</div><div class="ubbcode-body">I am putting together an SPR-type AR15. While I was looking into different components I noticed a "lightened" BCG made by Young. I also found a "Heavy" BCG made by another company (don't remember which company). Both were described as being being a superior product because of weighing less/more. I'm sure each has it advantages depending on the type of shooting, maybe? I plan to shoot the 77gr Sierra from a White Oak 20" barrel. Any insight is greatly appreciated.
PS - I've tried the search function. </div></div>
Too many guys look to the BCG weight, buffer spring and buffer weight to determine the timing of the AR-15. That is essentially backwards.
You can put any internals in the rifle you personally like IF, and only IF the gas port is sized right, and the gas block is positioned over it to convey all the gas to the gas key. It doesn't matter what BCG, spring or buffer you run, if these two elements are not optimal.
Therefore, it is best to get an adjustable gas block (I like the JET,titanium, low profile, because it is infinitely adjustable and can "tune" the rifle to any internals you happen to like, and fits under any HG) This also guarantees that for whatever load you shoot, you can tune the rifle to the load and vice versa.
Trying to do this via the weight of the carrier and or buffer is a lot like trying to align and balance the wheels of your car by putting more or less weight in the trunk....
When you build it, buy what you think is the most durable. For my 6.8's, I use the YNM standard weight chrome carrier, and the LMT enhanced bolts. I like the Tubbs CS flat wire springs alot. Then, I build the rifle, assess the timing and adjust the gas system as needed.
