FX IMPACT M3-M4 NEW DESIGN BREECH ORINGS .25
US$3.95
Accu-Shot New Design breech Orings 3 pack 6.1 x 1.5 for .25
Fx Impact M3-M4
new sized breech oring prevents blowback from previous
FX breech oring
prevents erratic shot counts and gain up to 6-8 fps
by sealing the breech to probe.