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Swiss Schmidt-Rubin Straight-Pull Rifle Database

MP5 A3 Retractable Stock "H" Buffer For All HK A3 Retractable Stocks

The A3 stock buffer is a high-wear and replacement item that needs replacement when torn, cracked, brittle, discolored, and worn. These units are from the same material and durometer as the factory HK German units at a fraction of the cost. There are no out-of-spec or old military surplus or inferior Pakistani discolored, old surplus units here. These are factory fresh and current production.

Compatible With:

MP5 (NOT compatible with MP5 .22 LR)
Guide For Replacement & Installation Of The H Buffer:

Use a set of needle nose pliers or a small flathead screwdriver and remove the old buffer a piece at a time. Make sure the entire buffer and all of the pieces are removed. Clean the stock surface of any residual pieces or carbon buildup.
Place the buffer in boiling water for several minutes or until the buffer becomes extra pliable. Press the new H buffer into the A3 stock opening until fully seated. As an alternate way to install the buffer, a drop of lube on the end of the buffer tapered cone with a wooden dowel or another hard object. The buffer can be tapped into place and become flush.
Be sure that the buffer sits flat and lined up with the receiver rails so that the carrier and stock end caps will line up when installed. If you need to adjust this, it can be done by turning the buffer slightly.