Carbine buffer vs A2 buffer

[Hawk]

I'm switching the stock on my 16" AR from a mil spec collapsible to a fixed standard A2 stock. I used the spring and buffer that came with the new fixed A2 stock. A friend of mine says because of the barrel length (16"), I should use the spring and buffer from the collapsible stock. Visually checking I see no difference in the springs or buffer. Is there a difference?


Hawk,

[JayBell]

under no circumstances should you ever use a collapsing stock buffer and spring in an A2 unit without a spacer.

the spring and buffer for a collapsible stock, and those for a fixed A2 stock have significant weight and length differences.

if you use a collapsing stock buffer and spring in a A2 fixed length stock, you will seriously damage your lower receiver ring when the gas key impacts the ring on firing.

you should see a difference in the springs and buffers, as below.

[Hawk]

under no circumstances should you ever use a collapsing stock buffer and spring in an A2 unit without a spacer.

the spring and buffer for a collapsible stock, and those for a fixed A2 stock have significant weight and length differences.

if you use a collapsing stock buffer and spring in a A2 fixed length stock, you will seriously damage your lower receiver ring when the gas key impacts the ring on firing.

you should see a difference in the springs and buffers, as below.

Thanks JayBell, I used the buffer and spring that came with the A2 fixed stock. I'll have to pull both of those out again to see for myself the difference between the two, like you showed in the above pic.

Hawk,