Significant Accounting Policies	9 Months Ended
Sep. 27, 2025
Significant Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES	NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES Organization: Sturm, Ruger & Company, Inc. (the “Company”) is principally engaged in the design, manufacture, and sale of firearms to domestic customers. Approximately 99% of sales are from firearms. Export sales accounted for approximately 5% of total sales for each of the nine month periods ended September 27, 2025 and September 28, 2024, respectively. The Company’s design and manufacturing operations are located in the United States and almost all product content is domestic. The Company’s firearms are sold through a select number of independent wholesale distributors, principally to the commercial sporting market. The Company also manufactures investment castings made from steel alloys and metal injection molding (“MIM”) parts for internal use in its firearms and for sale to unaffiliated, third-party customers. Approximately 1% of sales are from the castings segment. Principles of Consolidation: The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany accounts and transactions have been eliminated. Revenue Recognition: The Company recognizes revenue in accordance with the provisions of Accounting Standards Codification Topic 606, Revenue from Contracts with Customers (“ASC 606”). Substantially all product sales are sold FOB (free on board) shipping point. Customary payment terms are 2% 30 days, net 40 days. Generally, all performance obligations are satisfied when product is shipped and the customer takes ownership and assumes the risk of loss. In some instances, sales include multiple performance obligations. The most common of these instances relates to sales promotion programs under which downstream customers are entitled to receive no charge products based on their purchases of certain of the Company’s products from the independent distributors. The fulfillment of these no charge products is the Company’s responsibility. In such instances, the Company allocates the revenue of the promotional sales based on the estimated level of participation in the sales promotional program and the timing of the shipment of all of the firearms included in the promotional program, including the no charge firearms. Revenue is recognized proportionally as each performance obligation is satisfied, based on the relative customary price of each product. Customary prices are generally determined based on the prices charged to the independent distributors. The net change in contract liabilities for a given period is reported as an increase or decrease to sales. Fair Value Measurements: The carrying amounts of financial instruments, including cash, short-term investments, accounts receivable, accounts payable and accrued liabilities, approximate fair value due to the short-term maturity of these items. The Company’s short-term investments consist of United States Treasury instruments, which mature within one year, and investments in a bank-managed money market fund that invests exclusively in United States Treasury obligations and is valued at the net asset value ("NAV") daily closing price, as reported by the fund, based on the amortized cost of the fund’s securities. The NAV is used as a practical expedient to estimate fair value. This practical expedient is not used when it is determined to be probable that the fund will sell the investment for an amount different than the reported NAV. The fair value of inventory acquired as part of a business combination is based on a third-party valuation utilizing the comparable sales method which is based on Level 2 and Level 3 inputs. The fair value of property, plant and equipment acquired as part of a business combination is based on a third-party valuation utilizing the indirect method of cost approach, which is based on Level 2 and Level 3 inputs. The fair value of patents acquired as part of a business combination is based on a third-party valuation utilizing the replacement cost method, which is based on Level 2 and Level 3 inputs. The fair value of the remaining intangible assets as part of a business combination are based on a third-party valuation utilizing discounted cash flow methods that involves inputs, which are not observable in the market (Level 3). Business Combination: On July 1, 2025, the Company acquired substantially all of the assets of Anderson Manufacturing (“Anderson”) for a total purchase price of $15.8 million in cash, with $15 million having been paid in cash at the closing of the transaction and $0.8 million having been held back from the purchase price for the purposes described in Note 3 below (the “Anderson Acquisition”). The transaction was funded by the Company with cash on hand and has been accounted for in accordance with ASC 805 - Business Combinations, which requires, among other things, an assignment of the acquisition consideration transferred to the sellers for the tangible and intangible assets acquired, using the bottom up approach, to estimate their fair value at acquisition date. Any excess of the fair value of the purchase consideration over these identified net assets was recorded as goodwill. Our estimates of fair value are based upon assumptions believed to be reasonable, yet are inherently uncertain and, as a result, may differ from actual performance. During the measurement period, not to exceed one year from the date of acquisition, the Company may record adjustments to the estimated fair values of the assets acquired and liabilities assumed with a corresponding adjustment to goodwill in the period in which such revised estimates are identified. No such adjustments were recorded in the three months ended September 27, 2025. Use of Estimates: The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. Recent Accounting Pronouncements: In March 2024, the Securities and Exchange Commission (“SEC”) issued the final rule under SEC Release No. 33-11275 and 34-99678, The Enhancement and Standardization of Climate-Related Disclosures for Investors, requiring public companies to provide certain climate-related information in their registration statements and annual reports. The final rules will require information about a company’s climate-related risks that have materially impacted or are reasonably likely to have a material impact on its business strategy, results of operations, or financial condition, and the actual and potential material impacts of any identified climate-related risks on the company’s strategy, business model and outlook, as well as relating to assessment, management, oversight and mitigation of such material risks, material climate-related targets and goals, and material greenhouse gas emissions. Additionally, certain disclosures related to severe weather events and other natural conditions will be required in the audited financial statements. The first phase of the final rule is effective for fiscal years beginning in 2025. Disclosure for prior periods is only required if it was previously disclosed in an SEC filing. On April 4, 2024, the SEC voluntarily stayed implementation of the final rule to facilitate the orderly judicial resolution of pending legal challenges to the rule. On March 27, 2025, the SEC voted to end its defense of these rules, and sent a letter to the court before which the rules are being challenged withdrawing its defense of the rules and stating that SEC counsel is no longer authorized to advance the arguments made in the brief that the SEC had filed. We are currently evaluating the impact on our disclosures of adopting this new pronouncement. In December of 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” The updated accounting guidance requires expanded income tax disclosures, including the disaggregation of existing disclosures related to the effective tax rate reconciliation and income taxes paid. The guidance is effective for fiscal years beginning after December 15, 2024. Prospective application is required, with retrospective application permitted. The Company is currently evaluating the effect the updated guidance will have on its financial statement disclosures. In November 2024, the FASB issued ASU 2024-03, “Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (“ASU 2024-03”).” This guidance requires the disaggregation of certain expense captions into specified categories in disclosures within the notes to the financial statements to provide enhanced transparency into the expense captions presented on the statement of earnings. It is effective for annual reporting periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027, with early adoption permitted. Adoption may be applied either prospectively to financial statements issued for reporting periods after the effective date of ASU 2024-03 or retrospectively to any or all prior periods presented in the financial statements. The Company is evaluating the impact of this guidance on the Company’s related disclosures.

Significant Accounting Policies

9 Months Ended

Sep. 27, 2025

Significant Accounting Policies [Abstract]

NOTE 2 - SIGNIFICANT ACCOUNTING POLICIES

Organization:

Sturm, Ruger & Company, Inc. (the “Company”) is principally engaged in the design, manufacture, and sale of firearms to domestic customers. Approximately 99% of sales are from firearms. Export sales accounted for approximately 5% of total sales for each of the nine month periods ended September 27, 2025 and September 28, 2024, respectively. The Company’s design and manufacturing operations are located in the United States and almost all product content is domestic. The Company’s firearms are sold through a select number of independent wholesale distributors, principally to the commercial sporting market.

The Company also manufactures investment castings made from steel alloys and metal injection molding (“MIM”) parts for internal use in its firearms and for sale to unaffiliated, third-party customers. Approximately 1% of sales are from the castings segment.

Principles of Consolidation:

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany accounts and transactions have been eliminated.

Revenue Recognition:

The Company recognizes revenue in accordance with the provisions of Accounting Standards Codification Topic 606, Revenue from Contracts with Customers (“ASC 606”). Substantially all product sales are sold FOB (free on board) shipping point. Customary payment terms are 2% 30 days, net 40 days. Generally, all performance obligations are satisfied when product is shipped and the customer takes ownership and assumes the risk of loss. In some instances, sales include multiple performance obligations. The most common of these instances relates to sales promotion programs under which downstream customers are entitled to receive no charge products based on their purchases of certain of the Company’s products from the independent distributors. The fulfillment of these no charge products is the Company’s responsibility. In such instances, the Company allocates the revenue of the promotional sales based on the estimated level of participation in the sales promotional program and the timing of the shipment of all of the firearms included in the promotional program, including the no charge firearms. Revenue is recognized proportionally as each performance obligation is satisfied, based on the relative customary price of each product. Customary prices are generally determined based on the prices charged to the independent distributors. The net change in contract liabilities for a given period is reported as an increase or decrease to sales.

Fair Value Measurements:

The carrying amounts of financial instruments, including cash, short-term investments, accounts receivable, accounts payable and accrued liabilities, approximate fair value due to the short-term maturity of these items.

The Company’s short-term investments consist of United States Treasury instruments, which mature within one year, and investments in a bank-managed money market fund that invests exclusively in United States Treasury obligations and is valued at the net asset value ("NAV") daily closing price, as reported by the fund, based on the amortized cost of the fund’s securities. The NAV is used as a practical expedient to estimate fair value. This practical expedient is not used when it is determined to be probable that the fund will sell the investment for an amount different than the reported NAV.

The fair value of inventory acquired as part of a business combination is based on a third-party valuation utilizing the comparable sales method which is based on Level 2 and Level 3 inputs. The fair value of property, plant and equipment acquired as part of a business combination is based on a third-party valuation utilizing the indirect method of cost approach, which is based on Level 2 and Level 3 inputs. The fair value of patents acquired as part of a business combination is based on a third-party valuation utilizing the replacement cost method, which is based on Level 2 and Level 3 inputs. The fair value of the remaining intangible assets as part of a business combination are based on a third-party valuation utilizing discounted cash flow methods that involves inputs, which are not observable in the market (Level 3).

Business Combination:

On July 1, 2025, the Company acquired substantially all of the assets of Anderson Manufacturing (“Anderson”) for a total purchase price of $15.8 million in cash, with $15 million having been paid in cash at the closing of the transaction and $0.8 million having been held back from the purchase price for the purposes described in Note 3 below (the “Anderson Acquisition”).

The transaction was funded by the Company with cash on hand and has been accounted for in accordance with ASC 805 - Business Combinations, which requires, among other things, an assignment of the acquisition consideration transferred to the sellers for the tangible and intangible assets acquired, using the bottom up approach, to estimate their fair value at acquisition date. Any excess of the fair value of the purchase consideration over these identified net assets was recorded as goodwill. Our estimates of fair value are based upon assumptions believed to be reasonable, yet are inherently uncertain and, as a result, may differ from actual performance. During the measurement period, not to exceed one year from the date of acquisition, the Company may record adjustments to the estimated fair values of the assets acquired and liabilities assumed with a corresponding adjustment to goodwill in the period in which such revised estimates are identified. No such adjustments were recorded in the three months ended September 27, 2025.

Use of Estimates:

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.

Recent Accounting Pronouncements:

In March 2024, the Securities and Exchange Commission (“SEC”) issued the final rule under SEC Release No. 33-11275 and 34-99678, The Enhancement and Standardization of Climate-Related Disclosures for Investors, requiring public companies to provide certain climate-related information in their registration statements and annual reports. The final rules will require information about a company’s climate-related risks that have materially impacted or are reasonably likely to have a material impact on its business strategy, results of operations, or financial condition, and the actual and potential material impacts of any identified climate-related risks on the company’s strategy, business model and outlook, as well as relating to assessment, management, oversight and mitigation of such material risks, material climate-related targets and goals, and material greenhouse gas emissions. Additionally, certain disclosures related to severe weather events and other natural conditions will be required in the audited financial statements. The first phase of the final rule is effective for fiscal years beginning in 2025. Disclosure for prior periods is only required if it was previously disclosed in an SEC filing. On April 4, 2024, the SEC voluntarily stayed implementation of the final rule to facilitate the orderly judicial resolution of pending legal challenges to the rule. On March 27, 2025, the SEC voted to end its defense of these rules, and sent a letter to the court before which the rules are being challenged withdrawing its defense of the rules and stating that SEC counsel is no longer authorized to advance the arguments made in the brief that the SEC had filed. We are currently evaluating the impact on our disclosures of adopting this new pronouncement.

In December of 2023, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures.” The updated accounting guidance requires expanded income tax disclosures, including the disaggregation of existing disclosures related to the effective tax rate reconciliation and income taxes paid. The guidance is effective for fiscal years beginning after December 15, 2024. Prospective application is required, with retrospective application permitted. The Company is currently evaluating the effect the updated guidance will have on its financial statement disclosures.

In November 2024, the FASB issued ASU 2024-03, “Income Statement – Reporting Comprehensive Income – Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses (“ASU 2024-03”).” This guidance requires the disaggregation of certain expense captions into specified categories in disclosures within the notes to the financial statements to provide enhanced transparency into the expense captions presented on the statement of earnings. It is effective for annual reporting periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027, with early adoption permitted. Adoption may be applied either prospectively to financial statements issued for reporting periods after the effective date of ASU 2024-03 or retrospectively to any or all prior periods presented in the financial statements. The Company is evaluating the impact of this guidance on the Company’s related disclosures.