Tisas 1911 A1 Arched Mainspring Housing Assembly, Matte Grey

Tisas USA
(7 reviews)
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Tisas 1911 arched mainspring housing assembly and lanyard loop with a matte grey finish. OEM replacement for our 1911 A1 US Army and Tank Commander models.


Carbon Steel
1911 Series 70
Matte Grey
WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to : www.P65Warnings.ca.gov


  • 5

    Posted by Phred on 15th Jun 2024

    Item is as description states, a complete assembly. Ready to install. Put this MSH with lanyard loop in my Tisas 9mm & 45 acp Tank Commanders. Fit & finish is perfect match. Functions perfectly in both pistols.

  • 5
    Tisas arched main spring housing

    Posted by Giles H Mitchell Jr on 23rd Mar 2024

    I wanted it for my Tisas service special to give it a more old time nostalgic look. It fit perfectly. USMC Mitch

  • 4
    Mainspring Housing

    Posted by Patrick L Kelly on 22nd Feb 2024

    This part is advertised as an OEM replacement for the Tank Commander. While welll made, the finish does not match that of the Tank Comm, so it's unusable for my purposes.

  • 5
    1911 Mainspring housing

    Posted by Marsagent on 3rd Dec 2023

    Great price for a mainspring housing. The grey looks like parkerizing but it's some type of spray on finish. Most likely a Cerakote.

  • 5
    It is a awesome part

    Posted by Dean on 10th Nov 2023

    Looks like the real deal

  • 5
    Main spring housing with lanyard loop

    Posted by Robert Worthington on 13th Oct 2023

    Fit and finish excellent . Came with new main spring ,plunger and lanyard loop installed . Was a drop in fit

  • 5
    Mainspring Housing 1911 full size lanyard loop

    Posted by Steven on 2nd Jun 2023

    This is a complete unit with all the internal parts. Installed in Springfield Armory Mil Spec 1911. Perfect fit and color match to the parkarized SA finish. Great price A++++