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TRW Fake GI Bolts?

This is a discussion on TRW Fake GI Bolts? within the The M14 forums, part of the M14 M1A Forum category; Thank you for the info. One more question, whats the electro pencil m or w on the bottom of the bolt? Recently I have seen ...


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Old March 18th, 2017, 07:08 AM   #16
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Thank you for the info. One more question, whats the electro pencil m or w on the bottom of the bolt? Recently I have seen several bolts with this identical mark.

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Old March 18th, 2017, 07:14 AM   #17
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Thank you for the info. One more question, whats the electro pencil m or w on the bottom of the bolt? Recently I have seen several bolts with this identical mark.
On original bolts back in the beginning there were some bolts that failed. The gov't put in place a "magnetic particle inspection". That scribed M means that bolt was tested and passed.
PS ETA, while there are some early "good" bolts out there that don't have the M, if the M is not visible it is a good indicator that the bolt was re-parked, same with rollers. If roller is not bright and shiny, means the bolt was re-parked with the roller in place.

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Old March 18th, 2017, 07:15 AM   #18
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Thank you for the info. One more question, whats the electro pencil m or w on the bottom of the bolt? Recently I have seen several bolts with this identical mark.
I will let the experts chime in on this but I have read somewhere that was supposed to be an MPI proof mark.

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Old March 18th, 2017, 07:40 AM   #19
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The seller has another bolt listed also. The marking are cleaner , but I would suspect both bolts came from the same place.

Could this possibly be bolts from the "new and improved TRW" vendor that selling rifles and parts. [ AKA ... 7.62 ] ??

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Old March 18th, 2017, 07:51 AM   #20
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The seller has another bolt listed also. The marking are cleaner , but I would suspect both bolts came from the same place.

Could this possibly be bolts from the "new and improved TRW" vendor that selling rifles and parts. [ AKA ... 7.62 ] ??
I was wondering that myself

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Old March 18th, 2017, 08:22 AM   #21
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I have no problem with someone selling a repo or "improved" part but selling it as "USGI in wrapper" is pretty much trying to sell the item by flat out lying about it. I have always tried to educate myself but other times have had to learn lessons the hard way.

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Old March 18th, 2017, 08:44 AM   #22
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I'm just not seeing it fellas. I'm sort of like Ren and constantly compare after market parts with that of USGI. The aftermarket ones are not as refined in their machining and tend to have sharpened edges compare to the USGI counterparts. Just look at the bolt face, plunger and any other area of the bolt for that matter.

Everything about this bolt looks exacting to the dozen of HR, TRW and SA bolts I have. To me the stamping does seem a bit heavy but somewhere in the production process they have to press the number into the forging.

If this is a knockoff this is the best one ever. Someone just needs to buy a bolt direct from 7.62 (TRW) and see if the machining and stamping are matching.

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Old March 18th, 2017, 08:54 AM   #23
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The markings, other than the border framing them, look very similar to correct TRW bolts. And, for whatever reason, TRW bolt markings have rolled in edges of the figures as opposed to the raised or sharp edges on Springfield an the others.

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Old March 18th, 2017, 09:06 AM   #24
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I think it's real. For whatever reason probably struck too deep which created the frame effect from the edges of the die.

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Old March 18th, 2017, 09:27 AM   #25
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Well , I just checked the website for the "new TRW" . They say that all of their parts are made in the USA at their factory.

Here is a pic of their bolt. No markings on it at all. Also no info on their factory.
Attached Images
File Type: jpg bolt-2.jpg (367.9 KB, 54 views)

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Old March 18th, 2017, 09:53 AM   #26
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Am I really that old, has it really been almost 25 years I've been into the M14 platform and did I really spend more than 20 years of my life as a machinist?
The bolt in question is 100 percent a real USGI TRW bolt, from the replacement contract TRW had after rifle production ended.

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Old March 18th, 2017, 10:01 AM   #27
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Looks cast and hand stamped

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Old March 18th, 2017, 10:16 AM   #28
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Originally Posted by tnw50cal View Post
Am I really that old, has it really been almost 25 years I've been into the M14 platform and did I really spend more than 20 years of my life as a machinist?
The bolt in question is 100 percent a real USGI TRW bolt, from the replacement contract TRW had after rifle production ended.
You are welcome to your opinion. And you may be stating it from some info that I or others may not be aware of.

I, at this time disagree with you based on the stamping of the above bolt.
I have had in my possession a lot of TRW bolts and have never seen the border indentations as seen above.
Come to think of it, I have never seen it on any USGI bolt.

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Old March 18th, 2017, 10:17 AM   #29
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Am I really that old, has it really been almost 25 years I've been into the M14 platform and did I really spend more than 20 years of my life as a machinist?
The bolt in question is 100 percent a real USGI TRW bolt, from the replacement contract TRW had after rifle production ended.
Brudder, I hear what you're saying. Adding more pennies here. I have played with the M14 platform since 1978. Used to handle NOS bolts out of single wraps as well as 5 packs all thru the 80s. Been at gun shows where I would sit and watch tables for Jack (Armscorp) Bill Ricca, and many others when they went for food or rest room break. Would look over and inspect, compare parts all the time. I personally have never seen any maker bolt with that depression surrounding the mark.
If memory serves me correct, the marks are roll marked not stamped into the bolts. I could be wrong........

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Old March 18th, 2017, 10:42 AM   #30
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I checked my TRW bolts. All have the M on the underside and a dimple on top front from the Rockwell test. One shows a very faint border by the first 7. To see the border you have to use a magnifying glass. The photos do not show if the bolt in question has the Rockwell test dimple.

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