SLAMFIRE51
03-07-2004, 06:02 AM
After months of debating whether to do it or not, I did my first barrel swap.
I had bought the Bushmaster how- to video a few months ago and watched it several times. It seems to me to be a fairly simple process.
I then ordered the barrel assembly ("Dissipator") and the needed tools for assembly.
Since the upper I was planning to use was shot many times, I was concerned about how much of a problem the barrel nut would be to loosen. Well, my fears were put to rest as soon as I loosened the nut. It unscrewed with no problem whatsoever.
After cleaning and lubing the receiver threads, I screwed the barrel nut until hand tight and then torqued the nut to 35 ft/lbs. I did the torqueing process 2 more times.
To headspace, the extractor and ejector must be removed from the bolt. This also is a simple task. I slipped the NO-GO guage into the chamber, and as expected, the bolt did not lock into place. The bolt locked when the GO guage was inserted.
After assembling the rest of the gun, I took it outside to test fire. Holding the gun away from me like a infectious disease, I pulled the trigger. Hey it worked!! It fed, fired, and ejected perfectly. :D :D :D
For those who have been putting off building an AR, DON'T.
Next project: 20" on an A4 flattop upper as a groundhog and turtle shooter this summer.:rolleyes:
I had bought the Bushmaster how- to video a few months ago and watched it several times. It seems to me to be a fairly simple process.
I then ordered the barrel assembly ("Dissipator") and the needed tools for assembly.
Since the upper I was planning to use was shot many times, I was concerned about how much of a problem the barrel nut would be to loosen. Well, my fears were put to rest as soon as I loosened the nut. It unscrewed with no problem whatsoever.
After cleaning and lubing the receiver threads, I screwed the barrel nut until hand tight and then torqued the nut to 35 ft/lbs. I did the torqueing process 2 more times.
To headspace, the extractor and ejector must be removed from the bolt. This also is a simple task. I slipped the NO-GO guage into the chamber, and as expected, the bolt did not lock into place. The bolt locked when the GO guage was inserted.
After assembling the rest of the gun, I took it outside to test fire. Holding the gun away from me like a infectious disease, I pulled the trigger. Hey it worked!! It fed, fired, and ejected perfectly. :D :D :D
For those who have been putting off building an AR, DON'T.
Next project: 20" on an A4 flattop upper as a groundhog and turtle shooter this summer.:rolleyes: