Small Issue

Barrel Nut Shims Part #: SAR1000

  So, in my last article I mentioned a small problem I had during assembly of my upper. I was installing the barrel nut and was having a problem getting it aligned with the gas port on the upper receiver. I tightened the barrel to 80 foot pounds and it still would not align properly. I tried a second barrel nut and had the same issue. I then began to wonder if there was a way to correct the issue without buying more barrel nuts.

  I figured there should be a way to shim the barrel nut. So, I started to search online for thin metal to make some shims with. I found thin sheets of metal, but I was really wanting something I would not need to cut to work. I did a new search for "barrel nut shims", and found that they are available.

  I located a set of barrel nut shims in stock on the Spike's Tactical website. I ordered a set of them and waited for them to arrive. Once they were here, I was eager to complete the assembly. So, off to the vice with tools and parts in hand. I tried the different thicknesses of shims in the kit till I found the one that would work. It took 66 foot pounds of torque to line up the barrel nut with the gas port.

  So, if you have an issue with a barrel nut or you need to set the torque for a quadrail handguard I suggest you look into the barrel nut shims from Spike's Tactical.

  So, please remember to be safe and as always, keep it down range.

I'm Back

  Well, it's been awhile since I've posted due to a move and waiting on parts. I did finally get those parts that I'd been waiting for.

  The Adam's Arms Mid-Length Piston Conversion kit came in with a bent rod. I contacted Adam's Arms and was sent a replacement. After three piston rods we finally got a straight one. They were very helpful in getting the part replaced.

  I finally assembled the upper receiver and decided on a Magpul MOE Mid-Length Handguard. I added Magpul rails to the sides and bottom of the handguard for future add-ons. I must say I was impressed with the weight. The UBR is quite heavy, but with the extra weight on the Spike's Tactical FN barrel it brought the center of gravity to right above the magwell. So, even with ammo in the rifle it is very well balanced.




Finished Piston AR-15

  I have not had time to test fire the rifle yet, and I did run into a small issue during assembly that I will write about in a future article. All in all, I must say it has been a good experience building this rifle and look forward to completing the other two at a later date.

  So, please remember to be safe and as always, keep it down range.