View Full Version : Buffer length in AR15's

March 21, 2010, 09:34 PM
What happens if you use a shorter buffer in an AR15? I have a rifle that is working, but makes a "springy" sound when fired. It has a full-length rifle sized buffer. If I put in a carbine length buffer what will happen -- will it still work?

March 21, 2010, 09:35 PM
Keep shooting your AR, you wont get rif of the "springy sound" but you'll get where you dont hear it.

March 21, 2010, 09:38 PM
OK, let me ask the same question a different way. Why is the AR15 buffer designed to be the length that it is in the rifle and carbine lengths?

March 22, 2010, 06:46 AM
The buffer tube on the collapsible M4 stock is shorter than the A1/A2 rifle version, so the buffer itself must be shorter to compensate.