An anonymous reader e-mailed me the following on March 30, 1999 (address
changed in this text on August 21, 1999 since original was outdated):

Pennsylvania Gun Law Guide  by  Ken Abel

Published by:
ABELexpress
100 Rosslyn Road Building 2
Carnegie, Pennsylvania 15106

(412) 279-0672
(800) 542-9001

Cost is $7.95 per copy
Shipping  $1.55 for the first copy and $0.50 for each additional copy

Also available is an "update" package for $5 which includes s/h

The book is OK, it could definately use an index.  I hate having to read
through the entire book just to answer one question.  YMMV