heavyshooter
Member
I have a Bushmaster Model #XM15-E2S. How do I know if the buffer tube is Commercial or Mil-Spec. I am trying to determine which Magpul CTR stock to order.
Heavy
Heavy
The Shrubs use a commercial RE, buy a mil-spec stock and replace the RE with mil-spec. Adding a H buffer would be good for a carbine gas system.I have a Bushmaster Model #XM15-E2S. How do I know if the buffer tube is Commercial or Mil-Spec. I am trying to determine which Magpul CTR stock to order.
Heavy
I have a newer bushy, same model, made less than a year ago. What I have noticed:
MP marked barrel.
F marked front sight.
My sr556 has a commercial tube for sure, and my stocks with the bushy are not interchangable. The bushy stock is too small for the ruger sr556. I have tried because I was bored one day.
My gas key is propery staked.
Shrouded firing pin in the bcg.
Chrome lined barrel of course.
...nominal 1.150 for milspec and 1.170 for commercial.
Commercial tubes can be thin in the walls which means they are not as strong and can bend more easily.
A real milspec buffer tube would be a Colt "forged" part part. They cost about $60. A good quality mil sized part can be bought from Bravo Company. IIRC they are around $30.
But to me this...:
...nominal 1.150 for milspec and 1.170 for commercial.
... does not jive with this:
Commercial tubes can be thin in the walls which means they are not as strong and can bend more easily.
I would think the 1.170" tubes would therefore be thicker than the 1.150" tubes. Unless the internal diameter is machined out larger in the 1.170" tubes, but that doesn't make sense to me as I would think buffers and springs would be overly loose then.
Can anyone educate me on this?
the buffer tube attaches the forend to the upper receiver right ?The reciever extension/buffer tube is the part the stock attaches to.
Price is about the same.
the buffer tube attaches the forend to the upper receiver right ?