Midway USA has finally received a new stock of
Smith & Wesson 1911 mainspring housings.

These are machine checkered at 20 lines per inch, and are lightweight aluminum. They will fit any standard Government Model or Commander sized 1911, and the fit is excellent. The best thing about them though is the price. $11.99. They also come with all the internals, making them a fantastic deal.
To swap out your old mainspring housing, first make sure your gun is unloaded. Wrap a large rubber band tightly around your pistol's grip safety and frame to hold it compressed. This prevents the sear spring from jumping off the sear. Then, make certain the hammer is down. Next, punch out the lower mainspring housing pin. (If you have a Springfield with the internal locking safety, lock the mainspring housing safety first.) Slide out the old mainspring housing, slide in the new mainspring housing, making sure the hammer strut rests in the mainspring cup. Finally drive in the mainspring housing pin, and remove the rubber band. Voila'! Instant upgrade for less money than the least expensive commonly obtainable housing alone!
Edited to add: Tuesday night......Wow, they are already out of stock again.....
Labels: 1911's, Gunsmithing, Heads Up