AR Sponsor
Posted: 11/25/2008 11:10:26 AM EDT
|
I have a carbine buffer and spring that came with my DPMS stock, but I want to us it for a build that I am planning on using a Ace skeletonized stock. This build is going to be a 18-20 barrel. My question is do I need a standard buffer and spring or can I use the Car one that I have now, BTW it's never been used so it's not worn out or anything.
Thanks Rinnie |
|
Which buffer/spring has nothing to do with barrel length, and everything to with buffer tube (or more properly, receiver extension) length.
For example, the Cav Arms lower, regardless of Carbine, Middy, or Rifle upper, requires use of CAR buffer and spring due to the shorter length of the molded in tube. If you were to try to use the carbine buffer and spring with a rifle length tube, the bolt carrier would move too far to the rear and the carrier key would damage the receiver. That is because the buffer is too short and the rear of the buffer would not hit the rear of the tube first, as designed. If you were to try to use a rifle buffer and spring with a carbine length tube, the too long rifle buffer would prevent the bolt carrier from moving far enough to the rear to cycle properly. It would shortstroke. |
|
Quoted:
Which buffer/spring has nothing to do with barrel length, and everything to with buffer tube (or more properly, receiver extension) length. Not completely correct. Gas tube length dictates the pressure at the gas block ports. Barrel length determines the dwell time between the ports and muzzle. All this dictates the optimum buffer weight and spring rate. For an Ace stock, go with the standard weight buffer and spring. |
AR Sponsor