I have a like new comp-n-choke for sale, has shot some winchester lead loads maybe 5 shots at most, looks brand new. XXX full (.665 constriction) fits winchester, browning invector, mossberg 500 & 9200. $35.00 TYD. For 12 gauge . Only lead has been shot out of this choke.
Choke has sold.
(http://i47.tinypic.com/34fk2oi.jpg)