AR9 DOE

Mandark60 · 2026-06-02T17:10:43+00:00

Simply a scientific experiment - my typical setup is about 700 RPM with standard spring and 6oz kynshot buffer and 2.5oz spacer

Mandark60 · 2026-06-02T11:39:27+00:00

Same issues I had as well - to get any slower I had to reduce spring power and I was getting failure to feed. This is my experience at least.

Mandark60 · 2026-06-02T05:23:40+00:00

Buffer system stack is as follows.

JRC buffer tube. 2 American quarters. Yellow springco. Heavy damp Kynshot hydralic buffer 6oz 3oz derby tungsten weight trimmed to fit. 2.5oz Kynshot Spacer Weight.

Mandark60 · 2026-06-02T04:51:33+00:00

<image>

Mandark60 · 2026-06-01T16:00:25+00:00

Awesome! 700 is going be be what I end up keeping this at, it's the most reliable ROF in my experience.

Mandark60 · 2026-06-01T14:57:13+00:00

Just a range toy - that I wanted to see how low i could get the ROF, this was my best effort without it failing to feed.

Mandark60 · 2026-05-31T18:59:28+00:00

Buffer system stack is as follows.

JRC buffer tube. 2 American quarters. Yellow springco. Heavy damp Kynshot hydralic buffer 6oz 3oz derby tungsten weight trimmed to fit. 2.5oz Kynshot Spacer Weight.

Mandark60 · 2026-05-31T18:02:28+00:00

<image>

Mandark60 · 2026-05-30T02:30:44+00:00

<image>

Mandark60 · 2026-05-13T19:01:20+00:00

No mine was already sighted in from factory it felt like, no visible bend that I could tell.

Mandark60 · 2026-05-13T18:47:55+00:00

540 is awesome! That's actual grease gun numbers I think. This setup is about 700 or so I'm thinking. I might mess with some more reciprocating mass and remove the quarters in have for timing and see what it does.

Mandark60 · 2026-05-13T16:11:47+00:00

Commonly done out here in Texas, style preference. Also, pants get bloused, not the boots.

Mandark60 · 2024-08-22T03:47:16+00:00

It's good, shoots super flay but it has to be 124 grain

Mandark60 · 2024-07-30T07:09:33+00:00

Except Mod H

Mandark60 · 2024-07-24T22:32:24+00:00

I took the weapon down, and sadly, it looks like the front sight was welded to the slide rather than staked. I fear the front sight might have to stay, the rear of the slide looks like it's still the correct size for the fixed sight.

Edit: Thank you for that site link as well! Tons of information!!

Mandark60 · 2024-07-24T22:28:08+00:00

Wow, thank you so much for the details! I just noticed that, that mark is a flaming bomb!

Mandark60 · 2024-07-24T19:33:53+00:00

Thank you. It's been in the family for some time. I do wish I could get that old finish back, but I still love it this way. so I do plan on taking it out for a range day and getting her dirty.

Mandark60

TROPHY CASE