Comments on: Making the AR-180B bolt hold open button https://gunlab.net/making-the-ar-180b-bolt-hold-open-button/ Adventures in gun building! Sat, 11 Apr 2026 23:49:22 +0000 hourly 1 https://wordpress.org/?v=4.1.41 By: Chuck https://gunlab.net/making-the-ar-180b-bolt-hold-open-button/#comment-10802 Tue, 09 Jun 2015 02:08:18 +0000 http://gunlab.net/?p=3611#comment-10802 Talk to Pete. He comes to this site.

]]> By: Kerwin Kerr https://gunlab.net/making-the-ar-180b-bolt-hold-open-button/#comment-10798 Mon, 08 Jun 2015 20:02:23 +0000 http://gunlab.net/?p=3611#comment-10798 I don’t need a bolt hold open stud. I’ve got one of those! Who’s got a bolt hold open for sale? My AR-180 is a Costa Mesa unit made by Stirling of England.

]]> By: Jim Sturges https://gunlab.net/making-the-ar-180b-bolt-hold-open-button/#comment-10796 Mon, 08 Jun 2015 15:07:30 +0000 http://gunlab.net/?p=3611#comment-10796 I’ve worked many years a receiving inspector for a defense contractor. McMaster-Carr always has great parts, but sometimes has limited options. the “black finish” is probably Du-lite, similar to hot bluing. I know there are fasener parts houses in Sothern California that can supply E-rings and snap rings with dark gray Parkerizing. Unfortunately I can’t remember their names.

]]> By: Chuck https://gunlab.net/making-the-ar-180b-bolt-hold-open-button/#comment-10791 Sun, 07 Jun 2015 21:42:55 +0000 http://gunlab.net/?p=3611#comment-10791 That is op 2 and will be done this next week.

]]> By: Rick Kelley https://gunlab.net/making-the-ar-180b-bolt-hold-open-button/#comment-10788 Sun, 07 Jun 2015 15:57:35 +0000 http://gunlab.net/?p=3611#comment-10788 Does the part get chucked back up from the other end and the parted side finish machined to size?

Great job so far and I can’t wait to see the completed kit.

Rick
AR180S.com

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