View Full Version : AR 6 pos. butt/ which spring??

December 5, 2009, 05:49 PM
Putting a no-name buttstock on a Bush. for a friend. Came with a shorter spring and a shorter buffer, but the bolt won't go back far enough to catch the bolt release and lock open. Looks like 3/8" more to the rear to catch. Looks like the carrier should go back 3 1/2" into the tube that retains the spring. Any clue??