BAR barrel nut

napg19 · October 31, 2018, 08:17 PM

A standard armorer's wrench will not fit on a Aero Precision ar15 BAR barrel nut to float the barrel. The wrench I have is one from Ruger and the side with 3 pins, 2 are just alittle too close together and the third one hangs off the nut. I hear there is a 2 pin wrench out there but can not find it. Please let me know where I can get one. Otherwise,
I thought of belt sanding the 2 pins just enough to fit. It does not look like it would take much sanding to make it work. But I don't want to make it unsafe to use either. Torque on this nut would be 30--
35 ft lbs. Any suggestions appreciated. Aero does not sell a tool for this bar nut.Thanks.

**4V50 Gary** · October 31, 2018, 08:46 PM

I'd make one then.

BTW classmate of mine made a tool to work on his car (Honda won't sell the tool). He grabbed some scrap at work and said it took hours to machine this cheap tool. Turns out it was 4140 steel. Kinda expensive metal for a cheap tool.

napg19 · October 31, 2018, 09:11 PM

I like that idea. Tomorrow evening it is. Thanks, have a good night.

Scorch · November 1, 2018, 12:22 AM

The new Aero Precision "improved" receivers use a proprietary barrel nut and wrench. Call Aero if you need a wrench.

Mobuck · November 1, 2018, 06:28 AM

Seems I'm confused about which "BAR" is being discussed.
There's always the "Dremel and pipe wrench" solution.

October 31, 2018, 08:17 PM	#1
napg19 Senior Member Join Date: December 5, 2009 Location: Arkansas Posts: 431	BAR barrel nut A standard armorer's wrench will not fit on a Aero Precision ar15 BAR barrel nut to float the barrel. The wrench I have is one from Ruger and the side with 3 pins, 2 are just alittle too close together and the third one hangs off the nut. I hear there is a 2 pin wrench out there but can not find it. Please let me know where I can get one. Otherwise, I thought of belt sanding the 2 pins just enough to fit. It does not look like it would take much sanding to make it work. But I don't want to make it unsafe to use either. Torque on this nut would be 30-- 35 ft lbs. Any suggestions appreciated. Aero does not sell a tool for this bar nut.Thanks.

October 31, 2018, 08:46 PM	#2
4V50 Gary Staff Join Date: November 2, 1998 Location: Colorado Posts: 21,832	I'd make one then. BTW classmate of mine made a tool to work on his car (Honda won't sell the tool). He grabbed some scrap at work and said it took hours to machine this cheap tool. Turns out it was 4140 steel. Kinda expensive metal for a cheap tool. __________________ Vigilantibus et non dormientibus jura subveniunt. *Molon Labe!*

November 1, 2018, 12:22 AM	#4
Scorch Senior Member Join Date: February 13, 2006 Location: Washington state Posts: 15,248	The new Aero Precision "improved" receivers use a proprietary barrel nut and wrench. Call Aero if you need a wrench. __________________ Never try to educate someone who resists knowledge at all costs. But what do I know? Summit Arms Services

October 31, 2018, 09:11 PM	#3
napg19 Senior Member Join Date: December 5, 2009 Location: Arkansas Posts: 431	I like that idea. Tomorrow evening it is. Thanks, have a good night.

November 1, 2018, 06:28 AM	#5
Mobuck Junior member Join Date: February 2, 2010 Posts: 6,846	Seems I'm confused about which "BAR" is being discussed. There's always the "Dremel and pipe wrench" solution.