Comments on: Making parts for the AR-180B http://gunlab.net/making-parts-for-the-ar-180b/ Adventures in gun building! Thu, 21 May 2026 18:19:14 +0000 hourly 1 https://wordpress.org/?v=4.1.41 By: Chuck http://gunlab.net/making-parts-for-the-ar-180b/#comment-10700 Sat, 30 May 2015 04:40:43 +0000 http://gunlab.net/?p=3554#comment-10700 I understand. I did engineering for years and teaching as well. I find the most personal pleasure while machining.

]]> By: Chuck http://gunlab.net/making-parts-for-the-ar-180b/#comment-10699 Sat, 30 May 2015 04:39:11 +0000 http://gunlab.net/?p=3554#comment-10699 The selector is 1018 non-heat treated while the shaft is the same material but case hardened to minimize wear.

]]> By: Chuck http://gunlab.net/making-parts-for-the-ar-180b/#comment-10698 Sat, 30 May 2015 04:37:44 +0000 http://gunlab.net/?p=3554#comment-10698 Jim, there is a boss on the selector and a grove cut into the shaft. Then they are attached together with a screw.

]]> By: JB黒狐 http://gunlab.net/making-parts-for-the-ar-180b/#comment-10697 Sat, 30 May 2015 01:41:31 +0000 http://gunlab.net/?p=3554#comment-10697 Chuck, thanks for sharing.

What grade of steel are they being made from & will they be Heat treated?

Owing to a new commenter (above) using the name JB on GunLab, I have added 黒狐 to mine to distinguish it from his or any future commenters, I have done the same on Forgotten Weapons.

]]> By: JB http://gunlab.net/making-parts-for-the-ar-180b/#comment-10692 Fri, 29 May 2015 15:44:14 +0000 http://gunlab.net/?p=3554#comment-10692 Wow! What feed and rpm are you using on that first tool? Do you usually cut dry?

]]> By: Jim Sturges http://gunlab.net/making-parts-for-the-ar-180b/#comment-10690 Fri, 29 May 2015 14:49:21 +0000 http://gunlab.net/?p=3554#comment-10690 What keeps the lever from rotating on the shaft? A tab or brazing?
Is there any plans to have the other end machined for a second ambidextrous lever?
I’ve been mulling over a few ways of designing an ambidextrous flip safety for the M1 Carbine without using a screw. But the Carbine safety is 50% smaller than an AR and my “solutions” seem too fragile.

]]> By: Rick Kelley http://gunlab.net/making-parts-for-the-ar-180b/#comment-10689 Fri, 29 May 2015 14:30:53 +0000 http://gunlab.net/?p=3554#comment-10689 I’m very excited about this project to say the least.

Thanks Chuck. Great work.

]]> By: Chris Brosnahan http://gunlab.net/making-parts-for-the-ar-180b/#comment-10688 Fri, 29 May 2015 14:09:30 +0000 http://gunlab.net/?p=3554#comment-10688 It took me YEARS to know what I wanted to do in life…my first choice – a military career was unavailable once I ETSed in July of ’74 – my eyesight which was borderline when I raised my right hand 43 years ago yesterday, Wednesday 28 May 1971, became a permanent bar to enlistment *refractive error in excess of = or – 8 diopters of correction. My second choice, teaching, taught me I wasn’t cut out to be a disciplinarian It wasn’t until I was in my 40s & 50s working in the Sikorsky Aircraft sheet-metal/machine shop that I realized I wouldda been happier (despite two useless college degrees) as a machinist. It always amazed me how a machinist could lock a chunk of metal into a milling machine or lathe and produce a part that allowed an aircraft to fly or to become a receiver for a classic firearm!!! My mantra since that time has been – Before you get a degree get a trade…with just a degree you may be scrounging for money & food…with a trade you’ll never go hungry…of course you may get your hands dirty, but IMHO the BEST jobs are the ‘Dirty Jobs’

]]> By: Chuck http://gunlab.net/making-parts-for-the-ar-180b/#comment-10687 Fri, 29 May 2015 13:33:08 +0000 http://gunlab.net/?p=3554#comment-10687 We have got that worked out and the video is coming soon.

]]> By: Mac http://gunlab.net/making-parts-for-the-ar-180b/#comment-10686 Fri, 29 May 2015 12:51:37 +0000 http://gunlab.net/?p=3554#comment-10686 Op 2 will be interesting! I’m wondering how you’ll hold the part in the vise to finish the bottom side?

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