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Posted: 4/14/2008 10:22:09 PM EDT
| I understand they are different sizes, I've seen the measurments somewhere on here before. But why would someone prefer one over the other? |
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I only use MAGPUL CTR stocks on carbines so to me it doesn't matter. I have ARs with commercial and ARs with MILSPEC. As long as the stock your prefer fits, it makes no difference unless your are one of the many who get hung up on the word MILSPEC. But, as already said, MILSPEC receiver extension do allow more stock choices due to some manufacturers not making commercial size stocks. |
Better way.  Look at the area where the bottom rail goes into the body of the tube. If the edge is a sharp "cut", it's milspec. If the joining point is rounded, it's commercial. |
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or, you could just measure the diameter of the tube. If it's 1.14" it's mil-spec and if it's 1.17" it's commercial - at least according to the instructions that came with my CTR stocks. I don't change stocks out much, if at all, so it's a non-issue for me. The last few DPMS commercial buffer tubes I've bought were $12 each, so again, a non-issue for me. |
I disagree that it's better. The critical difference is the diameter of the tube and the size of the tube relative to the threads is an easy indicator, Differences in the shape of the bottom rail may be generally accurate for current stocks but may be wrong for older versions and/or may be inaccurate for newly introduced items. |
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