I have built a .40 rifle from TOW parts, and the quality was fine. I later assembled a 20 gauge fowler kit from Chambers. There is absolutely no comparison in the finished product. The Chambers kit is much more authentic and graceful in its styling. I am not sure what the difference in cost may be now, but I am sure it is worth it. Details like the lock bolts missing the ramrod channel, the tabs to pin trigger guard in place are long enough to be located properly, and such are all properly worked out in the latter. A fine shooting gun can be made from the TOW parts, but the finished product will not have the grace of one made from Chambers kit.