Originally Posted by string1946
.... but never tried to build an upper but thats about to change
.... Today I ordered a 264 LBC-AR 20" SS barrel in black with target crown from Black Hole Weaponry which says has a 10 to 12 week lead time thought they have already sucked the money out of my account.
...... If anyone has spare parts to donate to the project let me know.
I am happy with my BlackHoleWeaponry 7", the build when well.
The Surplus Ammo And Arms Bolt headspaced properly.
Originally Posted by dwmiller
. Torque wrench is the key to building an upper
.... Make sure it fits your barrel nut wrench, some are 1/2", some are 3/8". . Mine has both size square holes.
.....A lot of free floats need a special (+$) wrench....
I think the money spent on the AR wrench is well spent. BRD may hit. Friends may want to borrow/trade.
I used my woodworking vise, Philippine Mahogany faced, without any special AR-15 blocks, clamps, vise or such. Torquing the barrel nut went well. I used the DPMS wrench and one of my existing torque wrenches.
The vice has a big surface area and provides plenty of support.