A new batch of barrels came in this week. There are two stainless steel and two chrom-moly barrels. One each of 20-inches and 16-inches. The two 20-inch barrels will be shipped to their new owners on Monday.
The two 16-inch barrels have the gas port in the mid-length position. Altair results from his experiment with increasing the buffer weight and spring tension which reduced the number of ejector swipes, seems to confirm what I have been reading about gas port positions. Which is that the carbine gas port position is best for the M4 carbine with a 14.5 inch barrel and that a 16-inch barrel will run smoother with a mid-length position. In addition, I had a chance to shoot a 14.5-inch barrel AR with a pinned comp. and it cycled much smoother than the 16-inch barrels with the gas port in the carbine position. So I thought that I would try an experiment make two barrels with the gas port in the mid-length position and see how they shoot compared to my 16-inch carbine gas port barrels.
Edit: Sorry, I did not intend to start a new thread