Well, found a bunch of these, more than I can use. These are correct, mil-spec (MIL-R-83248, Class 1) black Viton O-Rings for upgrading your extraction force.
*NOTE: By a happy coincidence, these also work as 1911 grip screw O-rings to keep your bushings from stripping out and your grips tight!
They have excellent chemical resistance, and temp resistance of -20 to 400 degrees F. Asking $3 per 4 rings shipped USPS First class. Additional rings are $1 per 2.
*I am selling these at my cost, they are actually worth more than I paid. Do not confuse these with cheap, non-domestic, non-milspec rings. These are made in the USA, and are certified.*
Preferred payment is cash, as money orders are something like $.70, so unless you are getting a bunch, it does not make sense. NO PP *EVER* UNTIL THEY DROP THE Anti-2A BS. I can add delivery confirmation and insurance at your expense and discretion.
I have 100% positive feedback over more than half a decade on the forum. Please post in the thread the quantity you would like, followed by an email or IM. Thanks!