end cap 414 has a concentric alignment guide ring 421 which aligns the third chamber inner tube 435 with the bore line in the retracted position this alignment guide ring 421 can have a beveled or angled inner surface such that the inner tube 435 can be self centered in the retracted position this allows for an accurate alignment of the various elements of the silencer to the bore line and ensures the projectile will pass through these elements freely the second chamber 420 has an opening with a flange or ridge 422 on the distal end concentric to the bore line to accommodate the third chamber 430 which can expand or contract longitudinally into the second chamber 420 the second cylinder has a concentric spring 424 which compresses the third chamber 430 into the second chamber 420 the spring 424 concentric with the second chamber 420 and third chamber 430 utilizes the flanges or ridges of the second chamber 422 and flanges or ridges of the third chamber 431 to hold the chambers in a normally retracted position the first chamber 410 can be of cylindrical or square or oval shape attached along side the second chamber 420 and with openings 415 along side the walls of the second chamber 420 into the first chamber 410 whereby the gases are flowed through the second chamber 420 and third chamber 430 and downward to the first chamber 410 in this embodiment the.