+1 for Eric at EZ Accuracy -

-been looking for smith closer to phila area for a long time and the only one I knew of was at clayton's and the very hard to find one at lock's; cdi is good but chalfont took forever to get to
-service was cut, crown, thread, and pin a muzzle device for me for a great price
-Eric is very respectful and prompt with responses (some smiths have such a 'godsgift' attitude, none of that here)

Highly recommend and will be using again!