Gas blowback pistol magazine o-ring Fits MSA92B, MFA92B, PSA92B, MFA92B & MFA92M airsoft pistols Replace the cracked o-ring on your airsoft gun. This spare part fits MSA92B, MFA92B, PSA92B, PFA92B & MFA92M airsoft pistols. Get your airsoft pistol back in firing shape and pick up this spare o-ring today!
