Fixed stock for California compliant M&P15 sport 2 with nontyical buffer tube

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n8vmind

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My CA compliant M&P15 sport 2 was assembled at the factory with a commerical diameter buffer tube that is near rifle length (almost 10 inches). I want to switch to a fixed stock so there is less wobbling. I don't think Magpul carbine fixed stock will fit. Has anyone had success with other commercial spec fixed stock? Since this is an economy AR, I don't want to spend more money to buy new buffer tubes (and a $60 wrench to change it out). Thanks

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Are you sure that it is commercial spec? I don't know about the California compliant models, but the free state models are all "mil-spec" dimensions.
 
cyphertext said:
Are you sure that it is commercial spec? I don't know about the California compliant models, but the free state models are all "mil-spec" dimensions.
Click to expand...
I measured it with a digital caliper and it is commerical diameter...not mil spec

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Last edited:
cyphertext said:
Are you sure that it is commercial spec? I don't know about the California compliant models, but the free state models are all "mil-spec" dimensions.
Click to expand...

Sounds like he has one of the "new" Sport II's. Only way to sell any AR out here is for it to be featureless or have a "fixed mag". At least he has a standard mag release.
 
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So installed new Brownells' MIL-spec buffer tube and Magpul fixed carbine stock. Now everything is snug and wobble free. Below is what the weird S&W factory buffer tube looks like.
2d8de1bf8d2fff697ae00d9cf7f1f308.jpg
99a3d40b016f80c35290c67bc633b136.jpg


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So they make a special buffer tube for their special CA guns? What a waste of time. Would just be way easier to install a pin the the stock.
 
Last edited:
It was also pinned from the factory. The lawyers must have gotten involved..

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