New M14 Aluminum stocks from marstar

EBR_nut

EBR_nut

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Hey Everyone,
I have a question, Does anyone have experience with the new M14 aluminum stocks from Marstar? I am thinking about getting one and am wondering what the installation time/cost will be. I don't mind doing the work my self but in the write up it says "due to dimensional variations between firearm and stock some minor fitting may be required". What the hell does this mean? Will the rifle be permanently altered if it gets fitted to this particular stock? I want the possibility of putting a Fiberglass stock back on it if the need should arise. If someone could clear this up for me that would be great.
 
Typically, on any chassis system, the area that *may* need fitting is the inletting for the back of the trigger guard. You have to make sure the guard fits deep enough into the stock that the hammer doesn't follow the bolt or you could have a full-auto string or a slamfire.

Not all stocks need to be fitted, it depends on the individual tolerance of your rifle.
 
EDIT: To properly inlet a milled Aliminum stock, IF your stock needs fitting (not all do), you will need a milling machine with a fairly sizeable table. In other words, unless you are a machnist with access to the right tools (i.e. a vertical knee mill), you will probably have to take it to a gunsmith.
 
EBR_nut said:
Hey Everyone,
I have a question, Does anyone have experience with the new M14 aluminum stocks from Marstar? I am thinking about getting one and am wondering what the installation time/cost will be. I don't mind doing the work my self but in the write up it says "due to dimensional variations between firearm and stock some minor fitting may be required". What the hell does this mean? Will the rifle be permanently altered if it gets fitted to this particular stock? I want the possibility of putting a Fiberglass stock back on it if the need should arise. If someone could clear this up for me that would be great.
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I have installed AKM'S and found there are some minor receiver variations among chinese m14's.

Its a simple matter of using a file to remove any binding spots.

Some were drop in fit , some minor filing , some major filing.

All required the scope bridge to be cut ala the old ARMS mount and the bridge bottom to be angled for long term reliable ejection.
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Sounds like work for a gunsmith

Thanks for the quick reply, Sounds like it may not be in the cards for me to do that work. But upon further reading it sounds like the marstar stock is a heavier copy of the sage CQB. I took a look at the sage and Fulton armory pages to take a look at the "real deal" so to speak. They will cost you an arm and a leg! :eek:That being said, do they ever come up used from time to time? (I don't have access to the buy/sell portion yet). Because i don't think ill be buying a new one any time soon.
 
Sage's do come up used very rarely but do show up... and they're still expensive. Fabsports is supposed to be stocking them soemtime in the future. Depending on what he's selling them for may affect the used price, but for right now $$$.
 
There's NO reason to mill the AKM bridge mount, just as there's no reason to mill the ARMS18 mount.

The problem is the chinese bolt springs. If you change your ejector and extractor springs for USGI ones, the problem goes away and the bolt will eject to specification. Alternately, you can cut 2 coils off the chinese extractor spring and 3 coils off the chinese ejector spring ;)

(or do what I do and just run a USGI bolt in your gun ;) )
 
Claven2 said:
There's NO reason to mill the AKM bridge mount, just as there's no reason to mill the ARMS18 mount.

The problem is the chinese bolt springs. If you change your ejector and extractor springs for USGI ones, the problem goes away and the bolt will eject to specification. Alternately, you can cut 2 coils off the chinese extractor spring and 3 coils off the chinese ejector spring ;)

(or do what I do and just run a USGI bolt in your gun ;) )
Click to expand...

Yes that is true - cutting does change the ejection angle and speed.

But for LONG TERM ejection reliability there is a reason to relieve the AKM bridge mount.

I have seen cut chinese extractor and ejector springs that still have had the case bounce off the bridge and hang up.
Especially as the cut springs age.

I have also seen cut springs slow ejection enough to cause the base of the case to get trapped between the op rod and the receiver when the op rod closes.

All the relieved and angled bridge mounts have never had a problem.There is enough clearance no matter how worn the chinese or G.I. springs are.

Thats been my experience - for what its worth - :)
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Last edited:
chopper 1 said:
Yes that is true - cutting does change the ejection angle and speed.

But for LONG TERM ejection reliability there is a reason to relieve the AKM bridge mount.

I have seen cut chinese extractor and ejector springs that still have had the case bounce off the bridge and hang up.
Especially as the cut springs age.

I have also seen cut springs slow ejection enough to cause the base of the case to get trapped between the op rod and the receiver when the op rod closes.

All the relieved and angled bridge mounts have never had a problem.There is enough clearance no matter how worn the chinese or G.I. springs are.

Thats been my experience - for what its worth - :)
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Where can you get USGI springs?
My bridgeless AKM still doesn't cycle/eject worth a damn.
 
Drucifer said:
Where can you get USGI springs?
My bridgeless AKM still doesn't cycle/eject worth a damn.
Click to expand...

With no bridge you definately have a cycling issue, could be gas piston, op rod guide , op rod spring etc.

What exactly is it doing - short stroking ? Weak ejection? etc.?
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