This Wilson Combat mainspring housing cap is a replacement part sized for 1911 Commander-frame pistols. It caps the base of the mainspring housing, retaining the mainspring and housing pin assembly so the grip frame closes up cleanly and functions as designed. Wilson Combat builds its small parts to the same tight tolerances as its full pistols, so this cap drops onto a Commander-pattern 1911 without hand-fitting. It is an inexpensive way to replace a lost, worn, or damaged original cap and keep a Commander-frame 1911 running correctly.

Key Specifications

• Purpose-built as a mainspring housing cap for the base of a 1911’s mainspring housing assembly.
• Sized for Commander-frame 1911 pistols for a correct factory-style fit.
• Precision-machined by Wilson Combat to close tolerances for reliable retention of the mainspring housing pin.

Frequently Asked Questions

What does a mainspring housing cap do? It caps the bottom of the 1911’s mainspring housing, holding the housing pin and mainspring assembly securely in place.

Will this fit a full-size 1911? This cap is sized specifically for Commander-frame 1911s; confirm your frame size before ordering.

Buy the Wilson Combat 1911 Commander Mainspring Housing Cap

A worn or missing mainspring housing cap is a quick, affordable fix, and this Wilson Combat part restores factory-correct fit and function to a Commander-frame 1911. Order it from our Wilson Combat lineup through our Lubbock, Texas gun shop for fast, insured direct shipping, and browse our full handgun parts selection for other 1911 small parts.