YOU ARE PURCHASING A BRAND NEW PISTON WITH RING & CLIP FOR THE OLDER STYLE RAMSET COBRA PLUS, THIS WILL ALSO FIT A REMINGTON MODEL 493. RAMSET PART # IS SC385903. THIS WILL FIT THE OLDER STYLE RAMSET COBRA PLUSÂ FIST GENERATION, THAT USES A SHEAR CLIP. THIS PART WILL NOT FIT THE REGULAR RAMSET COBRA. IF YOUR RAMSET COBRA PLUS HAS A SCREW ON NOSE PIECE AND TAKES A BUFFER THIS PART WILL NOT FIT! SEE MY OTHER AUCTIONS FOR THAT PART. FREE SHIPPING TO THE LOWER 48 STATES ONLY THESE ARE HIGH QUALITY PARTS MADE IN THE USA! I HAVE PARTS FOR ALL POWDER ACTUATED TOOLS BOTH OLD & NEW EMAIL ME IF YOU NEED OTHER PARTS!