Need help identifying part

It looks familiar. Maybe a part from the Mossberg 500? Is it the same diameter as the mag tube?

Is it the same diameter as the mag tube?

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I believe it fits over the mag spring and keeps the plug from falling through

What is this mm cm thing of which you speak?

How big is it in American inches all gunsmiths in America use to measure things??

rc

I know what it is.

I just don't have any metric micrometers, dial calipers, rulers, yards sticks, or tape measures.

And how is metric more accurate if you can't measure it to eight decimal places with any commonly available measuring tool on the planet??

rc

So, how many cm is 1/1,000 of an inch all my machine tools & measuring tools are calibrated in, and all my reloading books reference measurements in??

I just ain't got time for doing the math when this country doesn't run on metric measurements.

I'm too far along to convert to metric now.

I don't care how much more 'accurate' it is!!!

Because it isn't.

You can't measure anything smaller then a frog hair.
No matter what units you try to measure it with.

Rc

At about .4" (0.39370079" to be "exact") it looks like the rubber foot off my chronograph. If it were larger, a tad smaller than the magazine tube, I'd say it'd be the spring holder.

1" = 2.54 cm so 1cm is 1/2.54th of an inch or .3937" etc. Or you could just go here: https://www.bing.com/search?q=cm+to+inch&pc=MOZI&form=MOZSBR

Looks to me to be part of the recoil spring assemble (captive style -rear) for Springfield

Or a conversation device for metric vs inch pattern ?

9mmepiphany said:

.000254cm

A metric micrometer is usually 1mm per rotation, which is divided by 20 to offer a resolution of .05mm (0.0019685")

The simple conversion formula is to divide the millimeters by 25.4 (cm by 2.54)

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You have one too many zeros in your decimal equivalent. 1/1000 of an inch = .00254 CM or more commonly .0254 MM.

.000254 would be the equivalent of 1/1000" in decimeters.

As for the part in question, it looks like it fits on a rod or shaft that has a pin through it - hence the grooves in it. To me it doesn't look like a firearms quality part. Due to its grainy multi-colored appearance, it appears to be made out of recycled chunks of rubber or plastic.

Looks more like it might be part of the chair you were sitting on. Is the chair one of those with a gas/spring cylinder that you can adjust the height on? That's the first place I would look.

Woody

What is this mm cm thing of which you speak?

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The diameter is 1 centimeter, or 10 millimeters--much smaller than the diameter of the shotgun's mag tube.

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If he had said "40 Cal" you'd have gotten it right off

Buffer. Fits at the rear of the action, usually on the bolt guide. Meant to prevent metal on metal contact. The 10/22 uses one.

Oh, Buffer.
Thought you said Buffet there for a second.
It didn't look at all appetizing.

I hear ya RC, blasted metric system. I just don't see the relevance when it concerns guns and reloading.

I was going to say it's part of the 500 magazine assembly, but it's too small at just under .4".

GS

rcmodel said:

I know what it is.

I just don't have any metric micrometers, dial calipers, rulers, yards sticks, or tape measures.

And how is metric more accurate if you can't measure it to eight decimal places with any commonly available measuring tool on the planet??

rc

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Only the US, Burma and Liberia haven't adopted the SI system, so the most common measuring tool on the planet would use SI. Technically one can measure to a 1/2mm on a standard ruler, a ton more precise than 1/32 which is the smallest measurement I've seen on a standard/common tape measure/ruler.

I grew up a carpenter's son and worked for my old man to put myself though college where I embraced the sciences. I'm still not a convert to SI for nominal measurements (old habits die hard) but the SI measures of volume and weight make much more sense.

I don't disagree with the metric system.

All I was saying is, I have Starrett steel pocket rules graduated in 1/64 inch.

And all my Sterret and Brown & Sharp mic's measure in 1/1,000, or 1/10,000 inch.

I have no Metric precesion measuring tools at all.

And every reloading manual and Gunsmithing book in my collection references inch measurments, not Metric.

I ain't got time to do math conversions every time somebody asks a gunsmith or reloading question on the internet in Metric!!!

And I can sometimes / most often help them.
If I don't have to do the Metric to Inch math conversion to find out what they are talking about first!!!

If you live in another part of the world that is Metric, fine.

If you live in the USA, speak common gunsmith & reloading measurements!!

rc

12Pump said:

Can someone here identify what it might be?

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If you do not have the instruction manuals for your firearms, frequently you can find exploded views of the guns on-line. That may help identify the part.

As far as the inch system versus the metric system, you still have to remember a conversion factor whether it is 36 inches to the yard or 100 centimeters to the meter.

Just remember, a pint's a pound the world around. Can't get much easier than that.

On-line parts schematic might help.

I still don't know how fast a Furlong per Fortnight is??

And really?
I don't care anymore.

If someone wants me to help as best I can?
(Which I think I often can?)

Speak in American measurements.

rc