I own a Thompson Cetner Omega Z5 an it shoots great. I was wondering though is there anyway I can take out the old breach and put in a Speed Breach XT? Thanks

doall hunter

I really do not think it is possible. The Speed Breech is physically much larger and a completely different design that a regular Omegas breech plug.

This page shows the regular Encore/Omega breech plug
https://secure.tcarms.com/store/muzz...acement-parts/

And this page shows the Speed Breech
https://secure.tcarms.com/store/muzz...-parts/page-3/