Moderator: MudBug
AR167 wrote:I think I'm using a Tubb standard buffer on mine. I didn't bother switching it when I had my .223 upper on the same lower. Works great for me. I think it was designed to use a standard buffer spring, so you should be GTG.
the_mad_rshn wrote:I went with the 16". I do not beleave there is a reason to get a long barrel for this caliber. It is not like you are going to be knocking down targets at 500 yards
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