sir, i ordered the above springfield armory mainspring housing #1756510 for my 1911, which is not a springfield armory. the housing itself fits fine, but the mainspring is short and the mainspring cap has a deeper recess ,then regular 1911 mainspring caps,so this lets the hammer with no presure on it ,untill it is pulled back to halfcock. this is just for your info,. i used my old mainspring and cap it worked fine . i will find a use for mainspring and cap thanks by rl
Thank your for the input regarding the lock style mainspring housing #1756510 you purchased. We will look into this further.