HK MP5 A3 Retractable Buttstock Buffer Reviews

H&K Heckler and Koch A3 Buffer - Stock - Retractable Stock Buffer for HK MP5 These common wear items need to be replaced when they become yellow, brittle, and worn. Inspect your buffer for the following: discoloration, the buffer becomes hard and brittle, tears, cracks, or breakages of any part of the buffer. Replacement of the H buffer on your A3 stock: Use a set of needle nose pliers or flat head screwdriver to remove all the existing "H" buffer. In most cases, you have to remove the old buffer a piece at a time. Place the buffer in boiling water for several minutes or until the buffer becomes pliable. Press the new buffer in the opening in the back of the A3 stock until the buffer sits flush with the backplate. You may need to use a dowel to help push the buffer into place.