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  • Home
  • Information
    • Contact Us
    • About
  • Manuals and Docs
    • Mosin Nagant
    • Tips and Tricks
    • RSI Installation Docs
    • Reloading Information
  • Customer Comments
  • Photo Gallery
  • Video Galleries
  • Online Store
  • Cart
    • Disclaimer
    • Checkout
    • Wishlist
  • Dealer Sales
  • Gunsmithing Services

Rock Solid Industries

Dedicated to Precision, Quality, and Strength.

Contact Us
About RSI

Swiss K-31

Showing all 5 results

  • RSI Swiss K-31 Firing Pin

    RSI Swiss K-31 Firing Pin

    $45.00
    Read more View Product
  • Swiss K-31 Bedding Pillars

    Swiss K-31 Bedding Pillars

    $10.00
    Add to cart View Product
  • Swiss K-31 Scope Mount (ON SALE)

    Swiss K-31 Scope Mount (ON SALE)

    $325.00
    Read more View Product
  • Swiss K-31 Firing Pin Spring

    Swiss K-31 Firing Pin Spring

    $12.95
    Read more View Product
  • Swiss K-31 Action Screws

    Swiss K-31 Action Screws

    $12.00
    Read more View Product

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Contact Us

Rock Solid Industries
Phone: (660) 259-2832
Order desk hours: Monday-Friday 8am-5pm CST

Email
customerservice@www.rocksolidind.com

International Sales

If your looking to purchase our products outside the United States click the link below.

FOR SALES OUTSIDE THE U.S.A.

Ray installs the MI-24C Scope Mount

Ray installs the MI-24C Scope Mount

Latest NRA News

  • DOJ Files Amicus Brief Supporting NRA-Backed Challenge to IL’s Ban on “Assault Weapons” and “Large-Capacity Magazines”
    on June 17, 2025 at 5:05 PM

    Last Friday, the U.S. Department of Justice filed an amicus brief in the Seventh Circuit supporting an NRA-backed challenge to Illinois’s prohibition on so-called “assault weapons” and “large-capacity magazines.”

  • Oregon: Committee Hearing For FFL-Killer Bill Tomorrow
    on June 17, 2025 at 4:32 PM

    Tomorrow, June 18th, the Joint Ways & Means Committee will hold a hearing on House Bill 3076, placing further restrictions on firearms dealers.

  • Florida: Legislature Adjourns Sine Die from 2025 Session
    on June 17, 2025 at 1:25 PM

    Yesterday, June 16, the Florida State Legislature adjourned sine die from its 2025 legislative session.  

  • Senate Finance Committee Releases Text of Reconciliation Bill
    on June 17, 2025 at 12:04 AM

    Today, the U.S. Senate Committee on Finance released its portion of the Senate version of the Reconciliation Bill. Late last month, the U.S. House passed a version of the Reconciliation Bill which included Section 2 of the Hearing Protection Act, which would remove suppressors from the National Firearms Act (NFA). In the portion that was just released by the U.S. Senate, they have included provisions of the SHORT Act, which is sponsored in the U.S. Senate by Senator Roger Marshall (R-KS), as well as several conforming amendments that would help ease confusion arising from removing these items from the NFA.

  • Nevada: Governor Lombardo Vetoes More Anti-Gun Bills!
    on June 16, 2025 at 3:15 PM

    Last week, Governor Lombardo vetoed two additional anti-gun bills that were passed by the legislature this session. NRA thanks Governor Lombardo for his continued commitment to protecting the Second Amendment rights of Nevada’s law abiding citizens. As previously reported, Governor Lombardo recently vetoed Assembly Bill 245 and Senate Bill 87. The Governor has now also vetoed the following gun control legislation:  

Cool Custom K31’s

Cool Custom K31’s

Custom K31's sporting our new scope mount. These rifles are tac drivers

Truth About Guns RSS Feed

    Eric Testing New Mount

    Eric Testing New Mount

    Eric aka Iraqveteran8888 seen here testing the new RSI scout mount system on a Bluegrass Gun Stocks Thumbhole results were outstanding!

    Product tags

    action pillars bi pod mount bolt handle Bullpup Bullpup Shotgun crimp cutter crimp removal Custom Stocks Firing Pin Spring Mossberg 500 Conversion Picatinny Rail pillars Reminton 870 Swiss K31 threaded bolt handle tool Trigger Trigger Shoe

    Rock Solid Products Made In The USA

    Rock Solid Products Made In The USA
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