BE Wild Willy
Member
The company in question was Numrich Arms, not Lyman. They (the guns) were inexpensive and in the hands of a good shooter often won matches where other competitors were using much more expensive rifles or pistols.
The only other spring was a small, coil trigger spring. The lockwork consisted of a hammer, trigger and two pins. The trigger guard acted as the hammer spring. You can't get less expensive or simple then that.
Here's mine...