Olympic Arms Manufacturing …‘Stamps’ & 'Markings'

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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Tue Oct 11, 2011 8:32 am

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Re: Olympic Arms Manufacturing …‘Marks’

Postby amstel78 » Fri Oct 28, 2011 6:19 pm

What does the 'W' signify on the lower or other components?

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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Fri Oct 28, 2011 6:55 pm

amstel78 wrote:What does the 'W' signify on the lower or other components?

I don't know? but I'm sure Rattler or Ductapeman would know; and I see a 'W' on this carrier assembly too, near the traditional Oly-Arms® marking; and this carrier was in my 300-OSSM

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Re: Olympic Arms Manufacturing …‘Marks’

Postby Rattler » Mon Oct 31, 2011 8:56 am

amstel78 wrote:What does the 'W' signify on the lower or other components?

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This is the assembler's stamp. It indicates that this is a factory assembled unit. The "W" is simply an in-house identifier as to who the assembler was.
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Rattler » Mon Oct 31, 2011 9:00 am

Globemaster wrote:
amstel78 wrote:What does the 'W' signify on the lower or other components?

I don't know? but I'm sure Rattler or Ductapeman would know; and I see a 'W' on this carrier assembly too, near the traditional Oly-Arms® marking; and this carrier was in my 300-OSSM

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The "W" here indicates that is is a WSSM Magnum carrier.

The little upside down Mercedes Benz Symbol is just simply a stamp that was on hand that had never been used before on anything Oly had done, or to the best of our knowledge is in use by any other manufacturer. It was in house, is was available, so it got adopted as the Oly factory cartuche. No hidden secrets or meanings.

But, if you want to start a rumor, i always that that "Oly considers themselves as the Mercedes Benz of AR manufacturers" would stir a lot of trouble! :thumbs up: :thumbs up:
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Mon Oct 31, 2011 9:41 am

Rattler wrote:This is the assembler's stamp. It indicates that this is a factory assembled unit. The "W" is simply an in-house identifier as to who the assembler was.

Rattler wrote:The "W" here indicates that is is a WSSM Magnum carrier.

The little upside down Mercedes Benz Symbol is just simply a stamp that was on hand that had never been used before on anything Oly had done, or to the best of our knowledge is in use by any other manufacturer. It was in house, is was available, so it got adopted as the Oly factory cartuche. No hidden secrets or meanings.

But, if you want to start a rumor, i always that that "Oly considers themselves as the Mercedes Benz of AR manufacturers" would stir a lot of trouble! :thumbs up: :thumbs up:

thanks for clearing that up Rattler ... good to know.
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Re: Olympic Arms Manufacturing …‘Marks’

Postby TJAR » Mon Nov 14, 2011 1:10 pm

Had the grip off my 2011 built PP today and there was a "1" stamped into the side of the lower there.
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Mon Nov 14, 2011 2:02 pm

TJAR wrote:Had the grip off my 2011 built PP today and there was a "1" stamped into the side of the lower there.

where's the picture?
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Sat Jan 21, 2012 9:20 pm

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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Sat Jan 21, 2012 9:24 pm

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Re: Olympic Arms Manufacturing …‘Marks’

Postby TJAR » Wed Mar 07, 2012 9:34 pm

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Here is a SS marking on a Oly M4 barrel... 8)
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Wed Mar 07, 2012 9:37 pm

TJAR wrote:Here is a SS marking on a Oly M4 barrel... 8)

I've never seen a 'marking' at that location before ... how old is that barrel? and what are the markings just forward of the FSB?
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Re: Olympic Arms Manufacturing …‘Marks’

Postby TJAR » Fri Mar 09, 2012 11:42 am

Came off a 2011 marked K3BM4......FSB fwd marks are SS 5.56
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Fri Mar 09, 2012 12:24 pm

interesting ... looks like their adding a new mark then :thumbs up:
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Mon Jan 07, 2013 9:38 pm

I'm assuming that the 'original' upper-halve (barrel) of this lower unit; was a 'CRYO' Cryogenically treated barrel ...


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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Mon Jan 07, 2013 10:54 pm

Plinker 'Marked' w/ SGW 'Marks' ... but no 'Stop Sign'

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Re: Olympic Arms Manufacturing …‘Marks’

Postby Rattler » Tue Jan 08, 2013 7:48 am

Globemaster wrote:interesting ... looks like their adding a new mark then :thumbs up:

No, that's just part of or what remains of the blank stamping. The barrel will still be marked forward of the FSB or gas block as well.
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Rattler » Tue Jan 08, 2013 9:15 am

Globemaster wrote:Plinker 'Marked' w/ SGW 'Marks' ... but no 'Stop Sign'

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Incorrect. Not marked with "SGW" marks. As you can see it still has all of the Olympic Arms markings circa 1989+, just less the Rampant lion. In the case of the cast receiver Plinkers (circa 1999-2001), it is the SERIAL number that simply begins with "SGW". All Cast receiver Plinkers have that serial number prefix. Additionally, the model number "356" was used on some cast lowers prior to the Plinkers being offered as a factory assembled gun. This model number was an indication of the type of aluminum being used in the case lower.
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Re: Olympic Arms Manufacturing …‘Marks’

Postby Globemaster » Tue Jan 08, 2013 11:20 am

copy that Rattler ... thanks for the 'expert' clarification :thumbs up:
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Re: Olympic Arms Manufacturing …‘Stamps’ & 'Markings'

Postby Globemaster » Thu Oct 03, 2013 6:55 pm

16in. 416 Stainless Steel, 1X14 twist ... so how many of these were made?

1998 era Olympic Arms C7 style upper, no bolt carrier assembly or charging handle, less than 10 rounds through it. Built for ballistics testing, then used for muzzle flash testing. Small patches of light surface rust in places and handling wear.


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Re: Olympic Arms Manufacturing …‘Stamps’ & 'Markings'

Postby Rattler » Fri Oct 04, 2013 7:39 am

Globemaster wrote:16in. 416 Stainless Steel, 1X14 twist ... so how many of these were made?

1998 era Olympic Arms C7 style upper, no bolt carrier assembly or charging handle, less than 10 rounds through it. Built for ballistics testing, then used for muzzle flash testing. Small patches of light surface rust in places and handling wear.


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Lots of 1x14 barrels were made back in the day. These barrels could have been used on any configuration upper (A1, A2 or Flat-tops), although most that went out as sully assembled uppers or guns, were on flat-tops.

They were made primarily when the 40 gr. Berger Bullet was introduced and it became the favorite bullet for predator hunters and varmint hunters.
Oly made a 1x14 twist in button rifled SS barrels as well as SUM barrels. DTech purchased quite a few of the 1x14 SUM barrels.
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Re: Olympic Arms Manufacturing …‘Stamps’ & 'Markings'

Postby Globemaster » Fri Oct 04, 2013 9:27 am

interesting ... thanks for the info Rattler
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Re: Olympic Arms Manufacturing …‘Stamps’ & 'Markings'

Postby Rattler » Mon Oct 07, 2013 6:45 am

Globemaster wrote:interesting ... thanks for the info Rattler

Yep, you'll see all sorts of odd markings on barrels from time to time. In the 223/5.56 we have done 1x10, 1x8, 1x7, 1x12, 1x14 and probably a couple i do not remember. Just keep in mind that the formula is the same for every chambering. While the standard/default twist rate is different for each caliber the bore and any alternative twist will always be marked on the barrel.
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Re: Olympic Arms Manufacturing …‘Stamps’ & 'Markings'

Postby John A. » Tue Dec 10, 2013 9:43 am

I can't find a mark on the bolt or carrier that came on my K3BM4 upper and I'm sure it's 100% Oly as I ordered it directly from them myself. The upper was bought shortly after the expiration of the AWB back in late '04
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Re: Olympic Arms Manufacturing …‘Stamps’ & 'Markings'

Postby John A. » Fri Apr 18, 2014 1:25 pm

Yes, I'm "THAT" guy
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